CN108866268B - Mounting and debugging structure and method for air port air supply device - Google Patents
Mounting and debugging structure and method for air port air supply device Download PDFInfo
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- CN108866268B CN108866268B CN201810815739.6A CN201810815739A CN108866268B CN 108866268 B CN108866268 B CN 108866268B CN 201810815739 A CN201810815739 A CN 201810815739A CN 108866268 B CN108866268 B CN 108866268B
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/16—Tuyéres
Abstract
The invention discloses an installation and debugging structure and method for a tuyere air supply device, which comprises an upper flange, wherein the bottom of the upper flange is provided with a lower flange, the top of the upper flange is provided with an upper connecting pipe, the bottom of the lower flange is provided with a lower connecting pipe, the upper flange and the upper connecting pipe as well as the lower flange and the lower connecting pipe are welded, the bottom of the upper flange is provided with a third annular groove, the top of the lower flange is correspondingly provided with an annular limiting block, and the annular limiting block is matched with the third annular groove. According to the invention, the adjustable clamping block moves left and right under the transmission action of the meshed gear and the gear teeth by screwing the adjusting knob, so that the joint of the upper flange and the lower flange is clamped, then the locking nut is screwed, if the mounting position needs to be debugged, the locking nut is unscrewed, then the relative position between the upper flange and the lower flange is adjusted, and after the adjustment is finished, the locking nut is screwed, so that the mounting and debugging are convenient and rapid.
Description
Technical Field
The invention relates to the technical field of installation of blast furnace air supply devices, in particular to an installation and debugging structure and method for an air port air supply device.
Background
The blast furnace air supply device is used as an important component of blast furnace iron smelting, whether the blast furnace air supply device is convenient and quick to install or not determines the maintenance time of the blast furnace, and the production efficiency of the blast furnace is also influenced. In current wind gap air supply arrangement installation, adopt the mode of directly welding or beating the staple bolt to fix air supply arrangement usually, in case appear the compensator and be not enough to adjust flange angle to suitable position or when the flange need do the axial adjustment, often because the restriction of flange self connected mode for difficult adjustment, alignment appear easily to the flange, the condition of unable equipment even.
Therefore, it is necessary to provide a mounting and debugging structure and method for an air outlet blowing device to solve the above problems.
Disclosure of Invention
The invention aims to provide an installation and debugging structure and method for an air port air supply device, wherein an adjustable clamping block is enabled to move left and right under the transmission action of a meshed gear and gear teeth by screwing an adjusting knob, so that the joint of an upper flange and a lower flange is clamped, then a locking nut is screwed, if the installation position needs to be debugged, the locking nut is unscrewed, then the relative position between the upper flange and the lower flange is adjusted, and after the adjustment is finished, the locking nut is screwed, so that the installation and debugging are convenient and quick, and the problems in the background art are solved.
In order to achieve the purpose, the invention provides the following technical scheme: a mounting and debugging structure for an air supply device of an air port comprises an upper flange, wherein a lower flange is arranged at the bottom of the upper flange, an upper connecting pipe is arranged at the top of the upper flange, a lower connecting pipe is arranged at the bottom of the lower flange, the upper flange and the upper connecting pipe as well as the lower flange and the lower connecting pipe are welded together, a third annular groove is arranged at the bottom of the upper flange, an annular limiting block is correspondingly arranged at the top of the lower flange, the annular limiting block is matched with the third annular groove, a screw hole is arranged at the edge of the top of the upper flange in a penetrating manner, and an annular through groove is arranged at;
the side walls of the upper flange and the lower flange are respectively provided with a first annular groove, one side of the first annular groove is provided with a second annular groove, a supporting plate is arranged between the first annular groove and the second annular groove, an adjustable clamping block is arranged outside the joint of the upper flange and the lower flange, a rectangular through groove is arranged on the adjustable clamping block in a penetrating manner, a screw rod is sleeved in the rectangular through groove, two ends of the screw rod are respectively sleeved in the screw hole and the annular through groove, the top end of the screw rod is connected with an adjusting knob, the bottom end of the screw rod is connected with a locking nut, a convex block is arranged in the middle of one side of the adjustable clamping block, first clamping blocks are arranged on two sides of the convex block, a second clamping block is fixedly arranged at one end of the convex block, a containing groove is formed between the first clamping block and the convex block, the two first clamping blocks are respectively matched, and the two second clamping blocks are respectively matched and spliced with the second annular grooves on the upper flange and the lower flange, and the supporting plate is matched and spliced with the containing groove.
Preferably, the annular limiting block both sides all are provided with first arc wall, third ring channel inner chamber both sides wall all is provided with the second arc wall, be provided with the ball in the first arc wall, and pass through ball swing joint between annular limiting block and the third ring channel, homogeneous phase cooperation between ball and first arc wall and the second arc wall, the diameter of ball is less than the groove diameter of first arc wall and is greater than the notch diameter of first arc wall.
Preferably, a metal sealing gasket is arranged at the joint of the annular limiting block and the third annular groove.
Preferably, the number of the screw holes is two, and the two screw holes are arranged in axial symmetry about the central axis of the upper flange.
Preferably, the number of the adjustable clamping blocks is two, and the cross sections of the two adjustable clamping blocks are both semi-annular.
Preferably, the rectangle leads to groove one side inner wall and is provided with the limiting plate and the opposite side inner wall is provided with the teeth of a cogwheel, limiting plate quantity is established to two, and two limiting plates are axisymmetric setting about the level of limiting plate place lateral wall to the axis, fixed cover is equipped with the gear on the screw rod, gear and the meshing of the teeth of a cogwheel, and the distance between two limiting plates is greater than the thickness of gear.
Preferably, the inner side wall of the adjustable clamping block is coated with an elastic sealing rubber gasket.
Preferably, the invention also provides an installation and debugging method of the installation and debugging structure for the air port air supply device, which comprises the following specific operation steps:
s1: measuring and screening the structural sizes of an upper flange and a lower flange to be installed, picking out qualified products, and cleaning an annular groove on the upper flange and the lower flange and the surface of a supporting plate to ensure the smoothness of the joint of the upper flange and the lower flange;
s2: the upper flange and the lower flange processed in the step S1 are respectively welded with the upper connecting pipe and the lower connecting pipe in a seamless mode, and the condition of leakage in the air supply process is avoided;
s3: assembling a third annular groove on the upper flange and an annular limiting block on the lower flange together, assembling an adjustable clamping block sleeved with a screw rod into a notch formed between the upper flange and the lower flange, and simultaneously, respectively sleeving two ends of the screw rod into the screw hole and the annular through groove, wherein the top end of the screw rod is connected with an adjusting knob and the bottom end of the screw rod is connected with a locking nut;
s4: the locking nut is unscrewed, the adjustable clamping block is moved leftwards and rightwards under the transmission action of the meshed gear and the gear teeth by screwing the adjusting knob, the joint of the upper flange and the lower flange is clamped, then the locking nut is screwed, when the mounting position needs to be debugged, the locking nut is unscrewed, then the relative position between the upper flange and the lower flange is adjusted, and after the adjustment is completed, the locking nut is screwed.
The invention has the technical effects and advantages that:
1. the adjustable clamping block moves left and right under the transmission action of the meshed gear and the gear teeth by screwing the adjusting knob, so that the joint of the upper flange and the lower flange is clamped, then the locking nut is screwed, if the mounting position needs to be debugged, the locking nut is unscrewed, then the relative position between the upper flange and the lower flange is adjusted, and after the adjustment is finished, the locking nut is screwed, so that the mounting and debugging are convenient and rapid;
2. the leakage resistance of the installation position of the air supply device can be greatly improved by the matching use of the metal sealing gasket and the elastic sealing rubber gasket, so that the safety of blast furnace iron smelting is improved;
3. the annular limiting block is movably connected with the third annular groove through the ball, so that labor is saved when the relative position between the upper flange and the lower flange is adjusted;
4. through being equipped with the layer board, can provide certain according to the support power for adjustable fixture block when debugging upper flange and lower flange to make it hold lower flange, be convenient for debug the relative position of upper and lower flange under the condition that upper and lower flange does not separate.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of an adjustable clamping block according to the present invention;
FIG. 3 is a top view of the upper flange of the present invention;
FIG. 4 is a bottom view of the lower flange of the present invention;
FIG. 5 is an enlarged view of portion A of FIG. 1 in accordance with the present invention;
in the figure: 1 upper flange, 2 lower flange, 3 upper connecting pipe, 4 lower connecting pipes, 5 first ring-shaped groove, 6 second ring-shaped groove, 7 layer board, 8 third ring-shaped groove, 9 ring-shaped limiting block, 10 screw hole, 11 ring-shaped through groove, 12 first ring-shaped groove, 13 second ring-shaped groove, 14 ball, 15 metal sealing gasket, 16 adjustable clamping block, 17 rectangle through groove, 18 limiting plate, 19 teeth of a cogwheel, 20 screw rod, 21 adjusting knob, 22 lock nut, 23 lug, 24 first clamping block, 25 second clamping block, 26 gear, 27 elastic sealing rubber gasket.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the invention provides an installation and debugging structure for a wind gap air supply device as shown in figures 1-5, which comprises an upper flange 1, wherein the bottom of the upper flange 1 is provided with a lower flange 2, the top of the upper flange 1 is provided with an upper connecting pipe 3, the bottom of the lower flange 2 is provided with a lower connecting pipe 4, the upper flange 1 and the upper connecting pipe 3 as well as the lower flange 2 and the lower connecting pipe 4 are welded together, the bottom of the upper flange 1 is provided with a third annular groove 8, the top of the lower flange 2 is correspondingly provided with an annular limiting block 9, the annular limiting block 9 is matched with the third annular groove 8, the edge of the top of the upper flange 1 is provided with a screw hole 10 in a penetrating way, and the edge of the bottom of the;
the side walls of the upper flange 1 and the lower flange 2 are respectively provided with a first annular groove 5, one side of each first annular groove 5 is provided with a second annular groove 6, a supporting plate 7 is arranged between the first annular groove 5 and the second annular groove 6, an adjustable clamping block 16 is arranged outside the joint of the upper flange 1 and the lower flange 2, a rectangular through groove 17 is arranged on the adjustable clamping block 16 in a penetrating manner, a screw 20 is sleeved in the rectangular through groove 17, two ends of the screw 20 are respectively sleeved in the screw hole 10 and the annular through groove 11, the top end of the screw 20 is connected with an adjusting knob 21, the bottom end of the screw is connected with a locking nut 22, the middle part of one side of the adjustable clamping block 16 is provided with a convex block 23, two sides of the convex block 23 are respectively provided with a first clamping block 24, one end of the convex block 23 is fixedly provided with a second clamping block 25, a containing groove is formed between the first clamping block 24 and the convex block 23, and the two first clamping blocks, the number of the second clamping blocks 25 is two, the two second clamping blocks 25 are respectively matched and spliced with the second annular grooves 6 on the upper flange 1 and the lower flange 2, and the supporting plate 7 is matched and spliced with the containing groove.
Further, in the above technical scheme, the two sides of the annular limiting block 9 are both provided with first arc-shaped grooves 12, the two side walls of the inner cavity of the third annular groove 8 are both provided with second arc-shaped grooves 13, the balls 14 are arranged in the first arc-shaped grooves 12, the annular limiting block 9 and the third annular groove 8 are movably connected through the balls 14, the balls 14 are matched with the first arc-shaped grooves 12 and the second arc-shaped grooves 13, the diameter of the balls 14 is smaller than the groove diameter of the first arc-shaped grooves 12 and larger than the groove opening diameter of the first arc-shaped grooves 12, and therefore the relative position between the upper flange 1 and the lower flange 2 can be adjusted more easily.
Further, in above-mentioned technical scheme, annular stopper 9 is provided with the metal sealing pad 15 with the junction of third ring channel 8, the elastic sealing cushion 27 of adjustable fixture block 16 inside wall cladding uses through the cooperation of metal sealing pad 15 and elastic sealing cushion 27, can improve air supply arrangement mounted position's leak protection nature greatly to improve the security of blast furnace smelting iron.
Furthermore, in the above technical scheme, the number of the screw holes 10 is two, and the two screw holes 10 are arranged in axial symmetry about the central axis of the upper flange 1, so that the stability of the upper flange 1 and the lower flange 2 during assembly can be greatly improved.
Further, in the above technical solution, the number of the adjustable clamping blocks 16 is two, and the cross-sectional shapes of the two adjustable clamping blocks 16 are both semi-circular, so that the joint between the upper flange 1 and the lower flange 2 is conveniently clamped.
Further, in the above technical solution, the inner wall of one side of the rectangular through groove 17 is provided with two limiting plates 18, the inner wall of the other side of the rectangular through groove is provided with two gear teeth 19, the two limiting plates 18 are arranged in axial symmetry with respect to the horizontal axis of the side wall where the limiting plates 18 are located, the screw 20 is fixedly sleeved with a gear 26, the gear 26 is engaged with the gear teeth 19, the distance between the two limiting plates 18 is greater than the thickness of the gear 26, the adjustable clamping block 16 can move left and right under the transmission action of the engaged gear 26 and the gear teeth 19 by screwing the adjusting knob 21, so as to clamp the joint of the upper flange 1 and the lower flange 2, and then the locking nut 22 is screwed, if the installation position needs to be adjusted, the locking nut 22 is only required to be unscrewed, then the relative position between the upper flange 1 and the lower flange 2 is adjusted, after the adjustment is completed, the locking nut 22 is tightened, so that the installation and debugging are convenient and fast.
Example 2:
the invention also provides an installation and debugging method of the installation and debugging structure for the air port air supply device, which comprises the following specific operation steps:
s1: measuring and screening the structural sizes of an upper flange 1 and a lower flange 2 to be installed, picking out qualified products, and cleaning annular grooves in the upper flange 1 and the lower flange 2 and the surface of a supporting plate 7 to ensure the smoothness of the joint of the upper flange 1 and the lower flange 2;
s2: the upper flange 1 and the lower flange 2 processed in the step S1 are respectively welded with the upper connecting pipe 3 and the lower connecting pipe 4 in a seamless mode, and the leakage in the air supply process is avoided;
s3: assembling a third annular groove 8 on the upper flange 1 and an annular limiting block 9 on the lower flange 2 together, assembling an adjustable clamping block 16 sleeved with a screw rod 20 into a notch formed between the upper flange 1 and the lower flange 2, and simultaneously, respectively sleeving two ends of the screw rod 20 into a screw hole 10 and an annular through groove 11, wherein the top end of the screw rod 20 is connected with an adjusting knob 21 and the bottom end is connected with a locking nut 22;
s4: the locking nut 22 is unscrewed, the adjustable clamping block 16 moves left and right under the transmission action of the meshed gear 26 and the gear teeth 19 by screwing the adjusting knob 21, the joint of the upper flange 1 and the lower flange 2 is clamped, then the locking nut 22 is screwed, when the mounting position needs to be debugged, the locking nut 22 only needs to be unscrewed, then the relative position between the upper flange 1 and the lower flange 2 is adjusted, and after the adjustment is completed, the locking nut 22 is screwed.
The working principle of the invention is as follows:
referring to the attached drawings 1-4 of the specification, when in use, the screened upper flange 1 and the screened lower flange 2 are respectively welded with the upper connecting pipe 3 and the lower connecting pipe 4 in a seamless manner to avoid the leakage in the air supply process, then the third annular groove 8 on the upper flange 1 and the annular limiting block 9 on the lower flange 2 are assembled together, the adjustable clamping block 16 sleeved with the screw rod 20 is assembled in the notch formed between the upper flange 1 and the lower flange 2, meanwhile, the two ends of the screw rod 20 are respectively sleeved in the screw hole 10 and the annular through groove 11, the top end of the screw rod 20 is connected with the adjusting knob 21, the bottom end of the screw rod 20 is connected with the locking nut 22, then the locking nut 22 is unscrewed, the adjustable clamping block 16 moves left and right under the transmission action of the meshed gear 26 and the gear teeth 19 by screwing the adjusting knob 21, and the joint of the upper flange 1 and the lower flange 2 is clamped, then the locking nut 22 is screwed, when the installation position needs to be debugged, the locking nut 22 only needs to be unscrewed, then the relative position between the upper flange 1 and the lower flange 2 is adjusted, and after the adjustment is finished, the locking nut 22 is screwed, so that the installation and debugging are very convenient and rapid;
referring to the attached drawing 5 of the specification, in the process of debugging the air supply device, because the two sides of the annular limiting block 9 are both provided with the first arc-shaped grooves 12, the two side walls of the inner cavity of the third annular groove 8 are both provided with the second arc-shaped grooves 13, and the balls 14 are arranged in the first arc-shaped grooves 12, and meanwhile, the annular limiting block 9 and the third annular groove 8 are movably connected through the balls 14, so that the relative position between the upper flange 1 and the lower flange 2 can be adjusted more easily.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a mounting and debugging structure for wind gap air supply arrangement, includes flange (1), its characterized in that: a lower flange (2) is arranged at the bottom of the upper flange (1), an upper connecting pipe (3) is arranged at the top of the upper flange (1), a lower connecting pipe (4) is arranged at the bottom of the lower flange (2), a third annular groove (8) is arranged at the bottom of the upper flange (1), an annular limiting block (9) is correspondingly arranged at the top of the lower flange (2), the annular limiting block (9) is matched with the third annular groove (8), a screw hole (10) is arranged at the top edge of the upper flange (1) in a penetrating manner, and an annular through groove (11) is arranged at the bottom edge of the lower flange (2) in a penetrating manner;
the side walls of the upper flange (1) and the lower flange (2) are respectively provided with a first annular groove (5), one side of each first annular groove (5) is provided with a second annular groove (6), a supporting plate (7) is arranged between each first annular groove (5) and each second annular groove (6), an adjustable clamping block (16) is arranged outside the joint of the upper flange (1) and the lower flange (2), a rectangular through groove (17) is arranged on each adjustable clamping block (16) in a penetrating manner, a screw rod (20) is sleeved in each rectangular through groove (17), two ends of each screw rod (20) are respectively sleeved in the screw hole (10) and the annular through groove (11), the top end of each screw rod (20) is connected with an adjusting knob (21) and the bottom end of each screw rod is connected with a locking nut (22), a convex block (23) is arranged in the middle of one side of each adjustable clamping block (16), two sides of each convex block (, the fixed second fixture block (25) that is equipped with of lug (23) one end, be formed with between first fixture block (24) and lug (23) and hold the groove, two first fixture block (24) is pegged graft with the cooperation of first ring channel (5) on upper flange (1) and lower flange (2) respectively, second fixture block (25) quantity is established to two, and two second fixture blocks (25) are pegged graft with the cooperation of second ring channel (6) on upper flange (1) and lower flange (2) respectively, layer board (7) are pegged graft with holding the groove cooperation.
2. The mounting and debugging structure for the tuyere air supply device of claim 1, which is characterized in that: annular stopper (9) both sides all are provided with first arc wall (12), third ring channel (8) inner chamber both sides wall all is provided with second arc wall (13), be provided with ball (14) in first arc wall (12), and pass through ball (14) swing joint between annular stopper (9) and third ring channel (8), homogeneous phase cooperation between ball (14) and first arc wall (12) and second arc wall (13), the diameter of ball (14) is less than the groove diameter of first arc wall (12) and is greater than the notch diameter of first arc wall (12).
3. The mounting and debugging structure for the tuyere air supply device of claim 1, which is characterized in that: and a metal sealing gasket (15) is arranged at the joint of the annular limiting block (9) and the third annular groove (8).
4. The mounting and debugging structure for the tuyere air supply device of claim 1, which is characterized in that: the number of the screw holes (10) is two, and the two screw holes (10) are arranged in axial symmetry around the central axis of the upper flange (1).
5. The mounting and debugging structure for the tuyere air supply device of claim 1, which is characterized in that: the number of the adjustable clamping blocks (16) is two, and the cross sections of the two adjustable clamping blocks (16) are both semi-annular.
6. The mounting and debugging structure for the tuyere air supply device of claim 1, which is characterized in that: the rectangle leads to groove (17) one side inner wall and is provided with limiting plate (18) and opposite side inner wall and is provided with teeth of a cogwheel (19), limiting plate (18) quantity is established to two, and two limiting plates (18) are axisymmetric setting about the level of limiting plate (18) place lateral wall, fixed cover is equipped with gear (26) on screw rod (20), gear (26) and teeth of a cogwheel (19) meshing, and the distance between two limiting plates (18) is greater than the thickness of gear (26).
7. The mounting and debugging structure for the tuyere air supply device of claim 1, which is characterized in that: the inner side wall of the adjustable clamping block (16) is coated with an elastic sealing rubber gasket (27).
8. The mounting and debugging method for the mounting and debugging structure of the air port air supply device according to claim 6, characterized in that: the specific operation steps are as follows:
s1: measuring and screening the structural sizes of an upper flange (1) and a lower flange (2) to be installed, picking out qualified products, and cleaning an annular groove on the upper flange (1) and the lower flange (2) and the surface of a supporting plate (7) to ensure the smoothness of the joint of the upper flange (1) and the lower flange (2);
s2: the upper flange (1) and the lower flange (2) processed in the step S1 are respectively welded with the upper connecting pipe (3) and the lower connecting pipe (4) in a seamless mode, and the leakage in the air supply process is avoided;
s3: assembling a third annular groove (8) on the upper flange (1) and an annular limiting block (9) on the lower flange (2) together, assembling an adjustable clamping block (16) sleeved with a screw rod (20) into a notch formed between the upper flange (1) and the lower flange (2), simultaneously, respectively sleeving two ends of the screw rod (20) into a screw hole (10) and an annular through groove (11), wherein the top end of the screw rod (20) is connected with an adjusting knob (21) and the bottom end of the screw rod (20) is connected with a locking nut (22);
s4: unscrewing lock nut (22), and move adjusting knob (21) through twisting and make adjustable fixture block (16) remove about the realization is under the transmission of engaged gear (26) and teeth of a cogwheel (19), thereby realize going up flange (1) and lower flange (2) junction and carry out the chucking, then screw up lock nut (22) can, when needs debug the mounted position, also only need unscrew lock nut (22), relative position between adjustment upper flange (1) and lower flange (2) after waiting to adjust, it can to screw up lock nut (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810815739.6A CN108866268B (en) | 2018-07-20 | 2018-07-20 | Mounting and debugging structure and method for air port air supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810815739.6A CN108866268B (en) | 2018-07-20 | 2018-07-20 | Mounting and debugging structure and method for air port air supply device |
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| Publication Number | Publication Date |
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| CN108866268A CN108866268A (en) | 2018-11-23 |
| CN108866268B true CN108866268B (en) | 2020-04-28 |
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| CN201810815739.6A Active CN108866268B (en) | 2018-07-20 | 2018-07-20 | Mounting and debugging structure and method for air port air supply device |
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| CN112833993A (en) * | 2020-12-31 | 2021-05-25 | 象山恒峰汽车零部件有限公司 | Water level sensor for automobile water tank convenient to stably install |
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| KR20090084518A (en) * | 2008-02-01 | 2009-08-05 | 주식회사 아이티웰 | The structure coupling flange and pipe |
| CN203823285U (en) * | 2014-05-23 | 2014-09-10 | 温州富通管件制造有限公司 | Mounting flange |
| CN203999658U (en) * | 2014-08-12 | 2014-12-10 | 秦皇岛中青冶金阀门有限公司 | A kind of installation and debugging structure for air port air-supply arrangement |
| CN104613259A (en) * | 2015-01-30 | 2015-05-13 | 张家港华日法兰有限公司 | Pipe flange |
| CN208519356U (en) * | 2018-11-12 | 2019-02-19 | 泰州市超威机电设备制造有限公司 | A kind of leakproof seal flange |
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Effective date of registration: 20211223 Address after: 221300 room 1604, unit 2, block AB, building 1, Pizhou Xinsu center, Minjiang Road, south of Century Avenue, Donghu street, Pizhou City, Xuzhou City, Jiangsu Province Patentee after: Xuzhou xinyukang building materials Co.,Ltd. Address before: 755000 w217, business building 2, Zhongshan Street Mall, Shapotou District, Zhongwei City, Ningxia Hui Autonomous Region Patentee before: NINGXIA AIDATING TECHNOLOGY Co.,Ltd. |
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