CN111424893A - High-rise building outer wall drainage pipe connects erection equipment - Google Patents
High-rise building outer wall drainage pipe connects erection equipment Download PDFInfo
- Publication number
- CN111424893A CN111424893A CN202010217893.0A CN202010217893A CN111424893A CN 111424893 A CN111424893 A CN 111424893A CN 202010217893 A CN202010217893 A CN 202010217893A CN 111424893 A CN111424893 A CN 111424893A
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- groove
- fixing plate
- plate
- rise building
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- 238000007789 sealing Methods 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 125000003003 spiro group Chemical group 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 7
- 238000005452 bending Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002633 protecting effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/08—Down pipes; Special clamping means therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/08—Down pipes; Special clamping means therefor
- E04D2013/0833—Elbow pieces
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/08—Down pipes; Special clamping means therefor
- E04D2013/084—Means for fixing down pipes to structure
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
The invention relates to a connecting and mounting device for a drainage pipeline on the outer wall of a high-rise building, which comprises a pipe fitting body and a fixing plate arranged at the inner corner of the pipe fitting body, wherein a scissor assembly and an angle adjusting device for adjusting the scissor assembly are also arranged on the fixing plate, a sealing device is coated at the outer corner of the pipe fitting body, two pull ropes are fixed on the back surface of the fixing plate, and the tail ends of the pull ropes are wound around the sealing device and wound on a tightening device on the front surface of the fixing plate. The clamp fixed on the pipeline, the fixing plate installed at the inner corner and the outer corner of the pipe fitting body and the sealing device form a stable triangle, so that the pipe fitting body can be fixed at three different positions, and the problem that no member for fixing a bend pipeline exists in the prior art is solved; through rotating the handle, make the pivot rotate under the meshing transmission of driving gear and driven gear to change the angle of cutting the fork subassembly, satisfy the crooked pipeline installation of various angles.
Description
Technical Field
The invention relates to the technical field of drainage pipe installation, in particular to a high-rise building outer wall drainage pipe connecting and installing device.
Background
In the city, in order to improve the land availability factor, high-rise building stands in forest, and office building, house etc. are all everywhere visible, and in order to make things convenient for with rainwater or sewage discharge, at high-rise building outer wall installation drain pipe, the drain pipe distributes and installs perpendicularly mostly, and in order to avoid the drain pipe to get off at the wind-force effect and go back and rock, utilize the clamp to fix the drain pipe on the wall, and this kind of fixed mode utilizes the bolt screw in wall in to cramp the drain pipe.
However, in practical situations, the following methods exist for installing the drainage pipe: the clamp is divided into a single piece and a plurality of pieces according to the number, the parallel type and the space type are divided according to the arrangement mode, the direction of the drain pipes is changed according to different building appearances, the angles of the bent parts of the drain pipes are different, the existing clamp is single in functionality, and the requirements of various installation modes cannot be met.
Secondly, fixing components for the bent parts of the drainage pipes are rare, and particularly, the connecting parts between the pipe fittings are not provided with corresponding installation equipment or protective devices, so that the high-rise building outer wall drainage pipe connecting installation equipment is provided.
Disclosure of Invention
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose: a connecting and installing device for drainage pipelines on the outer wall of a high-rise building comprises a pipe fitting body, wherein the pipe fitting body is formed by connecting two groups of pipelines through connecting parts, a fixing plate is arranged at the inner corner of the pipe fitting body, a scissor assembly and an angle adjusting device for adjusting the scissor assembly are further arranged on the fixing plate, the scissor assembly comprises a fixing rod and a rotating rod which are arranged in a crossed mode, fixing clamps are arranged at the tail ends of the fixing rod and the rotating rod, the fixing clamps are used for locking and fixing the pipelines through bolts which are screwed at the two ends, a shaft hole is formed in the crossed part of the fixing rod and the rotating rod, and the other end of the fixing rod is fixed on; the angle adjusting device comprises a rotating shaft penetrating through a shaft hole, a driven gear fixedly sleeved on the rotating shaft, the tail end of the rotating shaft is rotatably connected with a fixed plate, the angle adjusting device further comprises a spline shaft rotatably installed on the fixed plate, a driving gear in meshing transmission with the driven gear is fixedly installed outside the spline shaft, and a detachable handle is arranged in the center of the spline shaft; the utility model discloses a pipe fitting, including pipe fitting body, connecting portion, flexible sealing layer, connecting portion and flexible sealing layer, the outer corner department cladding of pipe fitting body has sealing device, sealing device comprises arc and the flexible sealing layer that bonds at the arc inside wall, in close contact with between connecting portion and the flexible sealing layer, the lateral wall both ends of arc are provided with the perforation, the back of fixed plate is fixed with two stay cords, and the end of stay cord passes the perforation, the front of fixed plate is provided with two sets of tightening means, and the terminal rolling of stay cord is on tightening means.
Preferably, the outer edge of the fixing plate is attached to the outer wall of the pipeline, an arc-shaped groove is formed in the position, close to the connecting portion, of the outer edge of the fixing plate, a rubber pad is bonded in the arc-shaped groove, and the connecting portion is in contact with the rubber pad.
Preferably, the fixed rod and the rotating rod are both L types, and reinforcing ribs are further arranged at the inner corners of the fixed rod and the rotating rod.
Preferably, the bar recess that extends along its length direction is seted up at the top of dead lever, slides in the bar recess and is provided with the slider, and the top of slider is installed and is moved the clamp, it is fixed at the fastening bolt of bar recess lateral wall through the spiro union to move the clamp.
Preferably, the front surface of the spline shaft is provided with a positioning groove, the positioning groove consists of a circular groove and rectangular grooves formed at two ends of the circular groove, and the handle is inserted into the positioning groove.
Preferably, the through hole is composed of a semicircular groove formed in the surface of the arc-shaped plate and a semicircular ring welded on the semicircular groove.
Preferably, the tightening device comprises a circular plate and an annular groove formed in the outer wall of the circular plate, a through hole is formed in the front face of the circular plate, a locking rod piece is clamped in the through hole in a butt joint mode, a threaded groove is formed in the position, corresponding to the tightening device, of the front face of the fixing plate, and the tail end of the locking rod piece is in threaded connection with the threaded groove.
Preferably, the scale mark has been carved with in the front of fixed plate, and the scale mark is the same with the pivot centre of a circle, the pointer to the scale mark is installed to the one end that decides the clamp is kept away from to the dwang.
Advantageous effects
1. The clamp fixed on the pipeline, the fixing plate installed at the inner corner and the outer corner of the pipe fitting body and the sealing device form a stable triangle, so that the three different positions of the pipe fitting body are fixed, and the problem that no member for fixing the bend pipeline exists in the prior art is solved; the rotating shaft rotates under the meshing transmission of the driving gear and the driven gear by rotating the handle, so that the angle of the scissor assembly is changed, and the installation of bent pipelines with various angles is met;
2. the pull rope is gradually shortened by rotating the tightening device, the sealing device is tightly contacted with the bending part under the action of the pull rope, the outer edge of the fixing plate also has a jacking effect on the bending part, the fixing of the bending part is realized by the extrusion of the fixing plate and the sealing device, and in addition, the sealing device has sealing and protecting effects on the connecting part of the pipeline;
3. the position of the movable hoop on the fixed rod is adjusted by rotating the fastening bolt, so that the distance between the fulcrum and the action point of force is adjusted, and the two ends of the fixed rod are stressed uniformly.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of area A of FIG. 1 in accordance with the present invention;
FIG. 3 is a perspective view of the spline shaft of the present invention;
FIG. 4 is an enlarged schematic view of the area B of FIG. 1 in accordance with the present invention;
FIG. 5 is a perspective view of the tightening mechanism of the present invention;
FIG. 6 is a schematic view showing an internal structure of a fixing lever according to the present invention;
FIG. 7 is a schematic view of the structure of the locking clip of the present invention;
fig. 8 is a schematic structural view of another operation state of the present invention.
In the figure: 10. a tube body; 11. a pipeline; 12. a connecting portion; 20. a fixing plate; 21. an arc-shaped groove; 22. a rubber pad; 23. scale lines; 30. a scissor assembly; 31. fixing the rod; 311. positioning pins; 312. a shaft hole; 313. a strip-shaped groove; 32. rotating the rod; 321. a pointer; 33. fixing a clamp; 34. reinforcing ribs; 35. moving the clamp; 36. a slider; 37. fastening a bolt; 40. an angle adjusting device; 41. a rotating shaft; 42. a driven gear; 43. a nut; 44. a spline shaft; 441. positioning a groove; 45. a driving gear; 46. a handle; 50. a sealing device; 51. an arc-shaped plate; 511. perforating; 52. a flexible sealing layer; 60. pulling a rope; 70. a tightening device; 71. a circular plate; 72. an annular groove; 73. a through hole; 74. and locking the rod piece.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 and 4, a high-rise building outer wall drainage pipe connecting and mounting device comprises a pipe fitting body 10 and a fixing plate 20 arranged at an inner angle of the pipe fitting body 10, wherein the pipe fitting body 10 is formed by connecting two groups of pipes 11 with a certain included angle through a connecting part 12, the fixing plate 20 is circular, the outer edge of the fixing plate 20 is attached to the outer wall of the pipe 11, an arc-shaped groove 21 is formed in the position, close to the connecting part 12, of the outer edge of the fixing plate 20, a rubber pad 22 is bonded in the arc-shaped groove 21, the connecting part 12 is in contact with the rubber pad 22, and the rubber pad 22 plays a role in protecting the connecting part 12 and avoids abrasion caused by;
as shown in fig. 1 and 7, the fixing plate 20 is further provided with a scissors assembly 30 and an angle adjusting device 40 for adjusting the scissors assembly 30, the scissors assembly 30 includes a fixing rod 31 and a rotating rod 32 which are arranged in a crossing manner, both the fixing rod 31 and the rotating rod 32 are L-shaped, the ends of the fixing rod 31 and the rotating rod 32 are both fixedly connected with a fixing clip 33, the fixing clip 33 is omega-shaped, the fixing clip 33 locks and fixes the pipeline 11 through bolts screwed at both ends, and a reinforcing rib 34 is further arranged at an inner angle between the fixing rod 31 and the rotating rod 32;
as shown in fig. 2 and 6, a strip-shaped groove 313 extending along the length direction is formed in the top of the fixed rod 31, a sliding block 36 is arranged in the strip-shaped groove 313 in a sliding manner, a movable clamp 35 is mounted on the top of the sliding block 36, the movable clamp 35 and the fixed clamp 33 are in the same shape, a threaded hole leading to the outside is formed in the side wall of the strip-shaped groove 313, a fastening bolt 37 used for fixing the movable clamp 35 is screwed in the threaded hole, and the position of the movable clamp 35 in the strip-shaped groove 313 can be adjusted by unscrewing and screwing the fastening bolt 37;
an axle hole 312 is formed in the intersection part of the fixed rod 31 and the rotating rod 32, the angle adjusting device 40 comprises a rotating shaft 41 penetrating through the axle hole 312 and a driven gear 42 sleeved on the rotating shaft 41, the tail end of the rotating shaft 41 is rotatably connected with the outer wall of the fixed plate 20, the fixed rod 31 is movably connected with the rotating shaft 41, the rotating rod 32 is fixedly connected with the rotating shaft 41, a nut 43 used for locking the driven gear 42 is screwed on the rotating shaft 41, the angle adjusting device 40 further comprises a spline shaft 44 rotatably mounted on the fixed plate 20, a driving gear 45 in meshing transmission with the driven gear 42 is fixedly mounted outside the spline shaft 44, a detachable handle 46 is arranged in the center of the spline shaft 44, the spline shaft 44 drives the driving gear 45 to rotate by rotating the handle 46, so that the driven gear 42 drives the rotating shaft;
as shown in fig. 3, the front surface of the spline shaft 44 is provided with a positioning groove 441, the positioning groove 441 is composed of a circular groove and rectangular grooves formed at two ends of the circular groove, the handle 46 is inserted into the positioning groove 441, the section of the part of the handle 46 inserted into the positioning groove 441 is the same as that of the positioning groove 441, the use of the handle 46 enables the spline shaft 44 to rotate more laborsavingly, and the handle 46 can be pulled out when not in use;
as shown in fig. 1 and 4, a positioning pin 311 is disposed at one end of the fixing rod 31, which is away from the fixed clamp 33, and the positioning pin 311 is fixedly connected to the fixing plate 20, a pointer 321 is mounted at one end of the rotating rod 32, which is away from the fixed clamp 33, when the rotating shaft 41 is driven by the driven gear 42 to rotate, the fixing rod 31 cannot rotate due to the limitation of the positioning pin 311, and the rotating rod 32 rotates under the drive of the rotating shaft 41, so that an included angle between the fixing rod 31 and the rotating rod 32 changes, the fixing rod 31 and the rotating rod 32 are always parallel to the pipeline 11, so that the fixed clamp 33 at the end thereof can fix bent pipes at different angles, a scale 23 is engraved on the front surface of the fixing plate 20, the scale 23 takes the center of the rotating shaft 41 as a center, and the pointer 321 points to the scale 23, so;
as shown in fig. 1 and 5, a sealing device 50 is coated at an outer corner of the pipe fitting body 10, the sealing device 50 is composed of an arc plate 51 and a flexible sealing layer 52 adhered to an inner side wall of the arc plate 51, the connecting portion 12 is in close contact with the flexible sealing layer 52, the flexible sealing layer 52 plays a role in sealing and insulating the connecting portion 12 between the pipelines 11, through holes 511 are formed in two ends of the outer side wall of the arc plate 51, and the through holes 511 are composed of a semicircular groove formed in the surface of the arc plate 51 and a semicircular ring welded on the semicircular groove; two pulling ropes 60 are fixed on the back of the fixing plate 20, the tail ends of the pulling ropes 60 pass through the through holes 511 and wind to the front of the fixing plate 20, and the tail ends of the pulling ropes 60 are wound on a tightening device 70 arranged on the front of the fixing plate 20;
the tightening device 70 comprises a circular plate 71 and an annular groove 72 formed in the outer wall of the circular plate 71, a threaded groove is formed in the front face of the fixing plate 20 corresponding to the circular plate 71, a through hole 73 is formed in the front face of the circular plate 71, the shape of the through hole 73 is the same as that of the positioning groove 441 referring to fig. 4, a locking rod 74 is clamped in the through hole 73 in a butt joint mode, an external thread is arranged on the outer wall of the locking rod 74, the tail end of the locking rod 74 is in threaded connection with the threaded groove, when the locking rod 74 is rotated, the locking rod 74 is gradually screwed into the threaded groove, the circular plate 71 is driven by the locking rod 74 to rotate, the pull rope 60 is wound in the annular groove 72, the pull rope 60 is gradually pulled close along with the rotation of the circular plate 71, and;
as shown in fig. 8, when the bending angle of the pipe fitting body 10 is changed, the handle 46 is manually rotated to rotate the pipe fitting body with the driving gear 45, the rotating shaft 41 drives the rotating rod 32 to rotate under the meshing transmission of the driving gear 45 and the driven gear 42, the fixed rod 31 is kept stationary, the rotating rod 32 is adjusted to be parallel to the pipeline 11, the rotating angle of the rotating rod 32 can be seen through the number of the pointer 321 pointing to the scale mark 23, the position of the movable clamp 35 in the strip-shaped groove 313 can be adjusted by unscrewing the tightening fastening bolt 37, and thus the stress point on the fixed rod 31 is more balanced.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a high-rise building outer wall drainage pipe connects erection equipment, includes pipe fitting body (10), its characterized in that: the pipe fitting body (10) is formed by connecting two groups of pipelines (11) through connecting parts (12), and a fixing plate (20) is arranged at the inner corner of the pipe fitting body (10);
the fixed plate (20) is further provided with a scissor assembly (30) and an angle adjusting device (40) for adjusting the scissor assembly (30), the scissor assembly (30) comprises a fixed rod (31) and a rotating rod (32) which are arranged in a crossed mode, fixed clamps (33) are arranged at the tail ends of the fixed rod (31) and the rotating rod (32), the fixed clamps (33) lock and fix the pipeline (11) through bolts screwed at two ends, a shaft hole (312) is formed in the crossed portion of the fixed rod (31) and the rotating rod (32), and the other end of the fixed rod (31) is fixed on the fixed plate (20) through a positioning pin (311);
the angle adjusting device (40) comprises a rotating shaft (41) penetrating through a shaft hole (312), a driven gear (42) fixedly sleeved on the rotating shaft (41), the tail end of the rotating shaft (41) is rotatably connected with the fixing plate (20), the angle adjusting device (40) further comprises a spline shaft (44) rotatably installed on the fixing plate (20), a driving gear (45) in meshing transmission with the driven gear (42) is fixedly installed outside the spline shaft (44), and a detachable handle (46) is arranged in the center of the spline shaft (44);
the outer corner of the pipe fitting body (10) is coated with a sealing device (50), the sealing device (50) is composed of an arc-shaped plate (51) and a flexible sealing layer (52) bonded to the inner side wall of the arc-shaped plate (51), the connecting portion (12) is in close contact with the flexible sealing layer (52), and two ends of the outer side wall of the arc-shaped plate (51) are provided with through holes (511);
two pull ropes (60) are fixed on the back of the fixing plate (20), the tail ends of the pull ropes (60) penetrate through the through holes (511), two groups of tightening devices (70) are arranged on the front of the fixing plate (20), and the tail ends of the pull ropes (60) are wound on the tightening devices (70).
2. The high-rise building exterior wall drainage pipeline connecting and mounting device as claimed in claim 1, wherein: the outer edge of fixed plate (20) is laminated with the outer wall of pipeline (11) mutually, arc recess (21) have been seted up along the position that is close to connecting portion (12) to the outer edge of fixed plate (20), and arc recess (21) internal bonding has rubber pad (22), connecting portion (12) contact with rubber pad (22).
3. The connecting and installing equipment for the drainage pipeline of the external wall of the high-rise building as claimed in claim 1, wherein the fixed rod (31) and the rotating rod (32) are both L-shaped, and reinforcing ribs (34) are further arranged at the inner corners of the fixed rod (31) and the rotating rod (32).
4. The high-rise building exterior wall drainage pipeline connecting and mounting device as claimed in claim 1, wherein: strip-shaped groove (313) that extend along its length direction are seted up at the top of dead lever (31), and it is provided with slider (36) to slide in strip-shaped groove (313), and the top of slider (36) is installed and is moved clamp (35), it is fixed at fastening bolt (37) of strip-shaped groove (313) lateral wall through the spiro union to move clamp (35).
5. The high-rise building exterior wall drainage pipeline connecting and mounting device as claimed in claim 1, wherein: the front surface of the spline shaft (44) is provided with a positioning groove (441), the positioning groove (441) consists of a circular groove and rectangular grooves formed at two ends of the circular groove, and the handle (46) is inserted into the positioning groove (441).
6. The high-rise building exterior wall drainage pipeline connecting and mounting device as claimed in claim 1, wherein: the through hole (511) is composed of a semicircular groove formed in the surface of the arc-shaped plate (51) and a semicircular ring welded on the semicircular groove.
7. The high-rise building exterior wall drainage pipeline connecting and mounting device as claimed in claim 1, wherein: the tightening device (70) comprises a circular plate (71) and an annular groove (72) formed in the outer wall of the circular plate (71), a through hole (73) is formed in the front face of the circular plate (71), a locking rod piece (74) is clamped in the through hole (73) in a butt joint mode, a threaded groove is formed in the position, corresponding to the tightening device (70), of the front face of the fixing plate (20), and the tail end of the locking rod piece (74) is in threaded connection with the threaded groove.
8. The high-rise building exterior wall drainage pipeline connecting and mounting device as claimed in claim 1, wherein: scale mark (23) have been carved with in the front of fixed plate (20), and scale mark (23) are the same with pivot (41) centre of a circle, pointer (321) of directional scale mark (23) are installed to the one end of deciding clamp (33) is kept away from in dwang (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010217893.0A CN111424893B (en) | 2020-03-25 | 2020-03-25 | High-rise building outer wall drainage pipe connects erection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010217893.0A CN111424893B (en) | 2020-03-25 | 2020-03-25 | High-rise building outer wall drainage pipe connects erection equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111424893A true CN111424893A (en) | 2020-07-17 |
| CN111424893B CN111424893B (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010217893.0A Active CN111424893B (en) | 2020-03-25 | 2020-03-25 | High-rise building outer wall drainage pipe connects erection equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503257A (en) * | 2020-10-20 | 2021-03-16 | 李强 | Mounting equipment for building outer wall water pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503257A (en) * | 2020-10-20 | 2021-03-16 | 李强 | Mounting equipment for building outer wall water pipe |
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| Publication number | Publication date |
|---|---|
| CN111424893B (en) | 2021-04-09 |
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Effective date of registration: 20240926 Address after: Room 1101, Building 2, Chenghe Building, Nanqiao, Baota District, Yan'an City, Shaanxi Province 716000 Patentee after: Yan'an Hongze Construction Engineering Co.,Ltd. Country or region after: China Address before: 243000 2-1, No. 139, Tongzhou Road, Cihu high tech Zone, Huashan District, Ma'anshan City, Anhui Province Patentee before: MAANSHAN HONGHE BUILDING ENGINEERING Co.,Ltd. Country or region before: China |