CN112680350B - Air interchanger for cell culture - Google Patents
Air interchanger for cell culture Download PDFInfo
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- CN112680350B CN112680350B CN202110000438.XA CN202110000438A CN112680350B CN 112680350 B CN112680350 B CN 112680350B CN 202110000438 A CN202110000438 A CN 202110000438A CN 112680350 B CN112680350 B CN 112680350B
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Abstract
The invention relates to the technical field of cell culture, and discloses a ventilation device for cell culture, which comprises a base, a box body, a placing frame, a box door, an air discharging component and an air inlet component, wherein the top end of the base is fixedly connected with the box body, the bottom end of the inner wall of the box body is fixedly connected with the placing frame, the right side of the box door is rotatably connected with the front surface of the box body, the right side of the box door is movably connected with the air discharging component, and the right side of the inner wall of the box body is movably connected with the air inlet component; when the chamber door is opened, the second baffle is not cutting off the intake pipe, and air cleaner transports clean air into the box from the intake pipe, when the chamber door is thoroughly closed, makes first baffle no longer cut off the outlet duct, makes the dirty air in the box pass through the outlet duct and discharges, thereby advances the air in the box and be in clean state, has just also prevented that dust in the air and some bacterium from getting into the culture dish and hindering the normal growth and the development of cell, has reduced cell culture failure rate.
Description
Technical Field
The invention relates to the technical field of cell culture, in particular to a ventilation device for cell culture.
Background
In various researches on cell production and development, such as biology, medicine and the like, cells are cultured, a cell culture device is used at the moment, a completely sterile environment is required to be achieved during cell culture, the cells to be cultured are placed in a culture dish in the conventional cell culture device, then the culture dish is placed in an incubator to be cultured, the incubator needs to be sterilized frequently to ensure that the cells can be smoothly cultured, and even if the cells can not be normally cultured, the external air can be intersected with the air in the incubator in the process of opening and closing the incubator, so that the external air enters the incubator, all known air contains various dusts and bacteria, and the dusts and the bacteria can fall into the culture dish after entering the incubator to pollute the culture dish, so that the cells can not normally develop, particularly, some molds can quickly reproduce and press the growth environment of the cells to kill the cells, and therefore, a ventilation device for preventing the polluted culture dish from being used for cell culture is provided.
Disclosure of Invention
In order to achieve the purpose of preventing the culture dish from being polluted, the invention provides the following technical scheme: the utility model provides a breather for cell culture, includes base, box, rack, chamber door, gassing subassembly and air admission subassembly, base top and box fixed connection, box inner wall bottom and rack fixed connection, the chamber door right side is connected with the box openly rotates, chamber door right side and gassing subassembly swing joint, box inner wall right side and air admission subassembly swing joint.
The air discharging assembly is optimized to be composed of a magnetic column, a baffle plate, a blocking cavity, a blocking block, a bent rod, a bent sleeve, a guide rope, a magnetic block, a push rod, an air outlet pipe, a first baffle plate and a first spring push rod, the magnetic column is slidably connected with the left side of the inner wall of the blocking block, the blocking block is fixedly connected with the bottom end of a box door, the blocking cavity is formed in the inner wall of the blocking block, the baffle plate is located on the inner wall of the blocking cavity and fixedly connected with the right side of the magnetic column, the bottom end of the bent rod is movably connected with the right side of the inner wall of the box door, the outer wall of the bent rod is slidably connected with the bent sleeve, the top end of the bent rod is fixedly connected with a box body, the top end of the bent rod is fixedly connected with the guide rope, the outer wall of the magnetic block is slidably connected with the left side of the inner wall of the box body, the top end of the magnetic block is fixedly connected with the push rod, the top end of the push rod is fixedly connected with the first baffle plate, the inner wall of the first baffle plate is slidably connected with the inner wall of the air outlet pipe, the outer wall is fixedly connected with the left side of the inner wall of the box body, the first baffle plate is fixedly connected with the first spring push rod, and the air discharging assembly discharges dirty air out of the box body.
Preferably, the air inlet assembly comprises an air inlet pipe, an air purifier, a sliding rod, a pawl, a spring, a ratchet wheel, a connecting shaft, a transmission belt, a coil spring, a second spring push rod, a cam, a push plate, a third spring push rod, a second baffle and a damper, the outer wall of the air inlet pipe is fixedly connected with the right side of the inner wall of the box body, the air inlet pipe and the right side of the air purifier are fixedly connected with the air purifier, the left side of the air purifier is fixedly connected with the right side of the box body, the outer wall of the sliding rod is slidably connected with the inner wall of the box body, the right side of the sliding rod is rotatably connected with the pawl, the bottom end of the pawl is fixedly connected with the spring, the bottom end of the spring is fixedly connected with the sliding rod, the connecting shaft is positioned on the right side of the sliding rod and rotatably connected with the front of the box body, the outer wall of the connecting shaft is positioned on the front of the ratchet wheel and movably connected with the transmission belt, the outer wall of the coil spring is fixedly connected with the inner wall of the box body, and the air inlet assembly puts clean air into the box body.
Preferably, the outer wall of the connecting shaft is located on the left side of the driving belt and fixedly connected with the damper, the left side of the damper is fixedly connected with the box body, the outer wall of the connecting shaft is located on the right side of the ratchet wheel and fixedly connected with the cam, and the connecting shaft can only rotate slowly through the damper.
As an optimization, the push plate is located below the cam and is in sliding connection with the inner wall of the box body, the bottom end of the push plate is fixedly connected with a third spring push rod, the bottom end of the third spring push rod is fixedly connected with the inner wall of the box body, the top end of the push plate is fixedly connected with the push rod, the top end of the push rod is fixedly connected with a second baffle, the outer wall of the second baffle is in sliding connection with the air inlet pipe, and the air inlet pipe is blocked through the second baffle.
Preferably, a first strong magnet is fixedly mounted on the inner wall of the magnetic block, a second strong magnet is fixedly mounted on the inner wall of the magnetic column, the first strong magnet and the second strong magnet repel each other, and when the box door is closed, the magnetic column pushes the magnetic block to move upwards through magnetic force.
As optimization, the bottom end of the bent rod is fixedly provided with a rectangular sliding block, the outer wall of the rectangular sliding block is connected with the right side of the inner wall of the box door in a sliding mode, and the bent rod can slide in a short distance on the inner wall of the box door through the rectangular sliding block.
Preferably, damping fluid is filled in the resistance cavity, and the top end of the guide rope is fixedly connected with the sliding rod, so that the guide rope can move together with the sliding rod when being pulled by the bent rod.
Preferably, the bottom end of the box body is positioned below the magnetic block and provided with a slot, the magnetic column is matched with the slot, and when the box door is closed, the magnetic column is inserted into the box body through the slot.
As the optimization, hinder board right side fixed mounting have a spring ejector pin, spring ejector pin right side and hinder intracavity wall right side fixed connection for hinder the board and keep the trend of motion left all the time, and then drive the trend that the magnetic column kept the motion left.
Preferably, the springs are extension springs, the third spring push rods and the auxiliary assemblies thereof are symmetrically arranged about the vertical center line of the push plate, and thrust is applied to the push plate through the third spring push rods, so that the push plate always keeps an upward movement trend.
The beneficial effects of the invention are: when the chamber door is opened, the cam rotates and makes the push pedal overcome third spring push rod thrust and rotate, the push pedal takes the push rod motion, the push rod takes the motion of second baffle, the second baffle is not at the wall intake pipe, air cleaner is with clean air from the intake pipe conveying into the box, dirty air that gets into in the box when making the chamber door open crosses with clean air, when the chamber door is thoroughly closed, the magnetic pillar is pushing away the magnetic path upward movement, the magnetic path takes the ejector pin motion, the ejector pin is pushing away first baffle motion, make first baffle no longer cut off the outlet duct, make dirty air in the box pass through the outlet duct and discharge, thereby air in letting the box is in clean state, dust and some bacterium in the air have just also been prevented and have got into the normal growth and the development that the culture dish hinders the cell, cell culture failure rate has been reduced.
Drawings
FIG. 1 is a schematic view of the overall front structure of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic view of the structure of FIG. 2, partially broken away, according to the present invention;
FIG. 4 is a schematic view of a slide bar and a ratchet structure according to the present invention;
FIG. 5 is an enlarged view of the structure at A in FIG. 4 according to the present invention;
FIG. 6 is a schematic view of a connecting shaft according to the present invention;
FIG. 7 is a schematic view of the air intake assembly of the present invention.
In the figure: 100. a base; 200. a box body; 300. placing a rack; 400. a box door; 500. a deflation assembly; 501. a magnetic column; 502. blocking the plate; 503. blocking the cavity; 504. blocking; 505. bending a rod; 506. bending a sleeve; 507. guiding a rope; 508. a magnetic block; 509. a top rod; 510. an air outlet pipe; 511. a first baffle plate; 512. a first spring push rod; 600. an air intake assembly; 601. an air inlet pipe; 602. an air cleaner; 603. a slide bar; 604. a pawl; 605. a spring; 606. a ratchet wheel; 607. a connecting shaft; 608. a transmission belt; 609. a coil spring; 610. a second spring push rod; 611. a cam; 612. pushing the plate; 613. a third spring push rod; 614. a push rod; 615. a second baffle; 616. a damper.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-7, a ventilator for cell culture comprises a base 100, a box 200, a holder 300, a box door 400, an air-out component 500 and an air-in component 600, wherein the top end of the base 100 is fixedly connected with the box 200, the bottom end of the inner wall of the box 200 is fixedly connected with the holder 300, the right side of the box door 400 is rotatably connected with the front surface of the box 200, the right side of the box door 400 is movably connected with the air-out component 500, and the right side of the inner wall of the box 200 is movably connected with the air-in component 600;
according to fig. 1, the air intake assembly 600 is operated by closing the door 400, so that clean air is introduced into the cabinet 200, and at the same time, the air discharge assembly 500 is operated, so that dirty air inside the cabinet 200 is discharged.
Referring to fig. 1-7, the air bleeding component 500 comprises a magnetic column 501, a blocking plate 502, a blocking cavity 503, a blocking block 504, a bent rod 505, a bent sleeve 506, a guide rope 507, a magnetic block 508, a top rod 509, an air outlet pipe 510, a first baffle 511 and a first spring push rod 512, wherein the magnetic column 501 is connected with the left side of the inner wall of the blocking block 504 in a sliding manner;
referring to fig. 2, a first strong magnet is fixedly mounted on the inner wall of the magnetic block 508, a second strong magnet is fixedly mounted on the inner wall of the magnetic column 501, and the first strong magnet and the second strong magnet repel each other;
referring to fig. 2, a blocking block 504 is fixedly connected with the bottom end of the door 400, a blocking cavity 503 is formed in the inner wall of the blocking block 504, a blocking plate 502 is positioned on the inner wall of the blocking cavity 503 and fixedly connected with the right side of a magnetic column 501, the bottom end of a bent rod 505 is movably connected with the right side of the inner wall of the door 400, the outer wall of the bent rod 505 is slidably connected with a bent sleeve 506, the top end of the bent sleeve 506 is fixedly connected with the box body 200, the top end of the bent rod 505 is fixedly connected with a guide rope 507, the outer wall of a magnetic block 508 is slidably connected with the left side of the inner wall of the box body 200, the top end of the magnetic block 508 is fixedly connected with a top rod 509, a rectangular sliding block is fixedly installed at the bottom end of the bent rod 505, and the outer wall of the rectangular sliding block is slidably connected with the right side of the inner wall of the door 400;
referring to fig. 2, a slot is formed at the bottom end of the box 200 below the magnetic block 508, and the magnetic pillar 501 is matched with the slot;
according to fig. 2, when the door 400 is closed, the magnetic pillar 501 is inserted into the box 200;
referring to fig. 3, a spring rod is fixedly installed on the right side of the blocking plate 502, and the right side of the spring rod is fixedly connected with the right side of the inner wall of the blocking cavity 503;
referring to fig. 3, the damping fluid is filled in the damping cavity 503;
according to fig. 2, when the magnetic column 501 is inserted into the box 200, the position of the resistance plate 502 is temporarily fixed due to the action of the spring ejector rod and the damping fluid in the resistance cavity 503, so that the magnetic column 501 pushes the magnetic block 508 to move upwards through magnetic force;
referring to fig. 2, the top end of the top rod 509 is fixedly connected with the first baffle 511, the first baffle 511 is slidably connected with the inner wall of the air outlet pipe 510, the outer wall of the air outlet pipe 510 is fixedly connected with the left side of the inner wall of the box body 200, the top end of the first baffle 511 is fixedly connected with the first spring push rod 512, and the top end of the first spring push rod 512 is fixedly connected with the inner wall of the box body 200;
according to fig. 2, when the magnetic block 508 moves upward, the first blocking plate 511 is pushed by the top rod 509 to move upward, so that the air outlet pipe 510 is opened.
Referring to fig. 1-7, the air intake assembly 600 comprises an air intake pipe 601, an air cleaner 602, a slide rod 603, a pawl 604, a spring 605, a ratchet 606, a connecting shaft 607, a transmission belt 608, a coil spring 609, a second spring push rod 610, a cam 611, a push plate 612, a third spring push rod 613, a push rod 614, a second baffle 615 and a damper 616, wherein the outer wall of the air intake pipe 601 is fixedly connected with the right side of the inner wall of the box 200, the air intake pipe 601 and the right side are fixedly connected with the air cleaner 602, the left side of the air cleaner 602 is fixedly connected with the right side of the box 200, and the outer wall of the slide rod 603 is slidably connected with the inner wall of the box 200;
referring to fig. 4-5, the right side of the sliding rod 603 is rotatably connected to the pawl 604, the bottom end of the pawl 604 is fixedly connected to the spring 605, the bottom end of the spring 605 is fixedly connected to the sliding rod 603, the spring 605 is specifically an extension spring, the third spring push rod 613 and its accessory components are two and symmetrically arranged with respect to the vertical center line of the push plate 612, the connecting shaft 607 is located at the right side of the sliding rod 603 and rotatably connected to the front surface of the box 200, the outer wall of the connecting shaft 607 is fixedly connected to the ratchet 606, the outer wall of the connecting shaft 607 is located at the front surface of the ratchet 606 and movably connected to the driving belt 608, the right side of the driving belt 608 is movably connected to the coil spring 609, and the outer wall of the coil spring (609) is fixedly connected to the inner wall of the box 200;
referring to fig. 2, the top end of the guide rope 507 is fixedly connected to the slide bar 603;
according to fig. 2, when the guide rope 507 carries the slide bar 603 downward, the slide bar 603 carries the ratchet 606 to rotate through the pawl 604;
referring to fig. 6, the outer wall of the connecting shaft 607 is located at the left side of the driving belt 608 and is fixedly connected with the damper 616, the left side of the damper 616 is fixedly connected with the box body 200, the outer wall of the connecting shaft 607 is located at the right side of the ratchet 606 and is fixedly connected with the cam 611, and the damper 616 is a rotational damper.
Referring to fig. 7, the push plate 612 is located below the cam 611 and is slidably connected to the inner wall of the box 200, the bottom end of the push plate 612 is fixedly connected to the third spring push rod 613, the bottom end of the third spring push rod 613 is fixedly connected to the inner wall of the box 200, the top end of the push plate 612 is fixedly connected to the push rod 614, the top end of the push rod 614 is fixedly connected to the second baffle 615, and the outer wall of the second baffle 615 is slidably connected to the air inlet pipe 601;
according to fig. 7, the push plate 612 moves up and down by the rotation of the cam 611 and the pushing force of the third spring push rod 613, the push plate 612 drives the push rod 614 to move, and the push rod 614 drives the second baffle 615 to move, so that the on-off of the air inlet pipe 601 is controlled.
In use, referring to fig. 1-7, a culture dish containing cells to be cultured is placed into the box body 200 through the placing rack 300, at this time, the door 400 needs to be opened, when the door 400 is opened, the door 400 drives the guide rope 507 to move through the curved rod 505, the guide rope 507 drives the sliding rod 603 to move, the sliding rod 603 drives the ratchet 606 to rotate through the pawl 604, the ratchet 606 drives the connecting shaft 607 to rotate, the connecting shaft 607 drives the driving belt 608 to operate, the front surface of the inner wall of the coil spring 609 is movably connected with a rotating shaft, the driving belt 608 drives the rotating shaft to rotate against the acting force of the coil spring 609, the connecting shaft 607 drives the cam 611 to rotate, the cam 611 rotates to enable the push plate 612 to rotate against the pushing force of the third spring push rod 613, the push plate 612 drives the push rod 614 to move, the push rod 614 drives the second baffle 615 to move, the second baffle 615 is not in the air inlet pipe 601, the air purifier 602 delivers clean air from the air inlet pipe 601 into the box body 200, when the door 400 is completely closed, the magnetic pillar 501 pushes the magnetic block 508 to move upwards, the magnetic block 508 drives the top rod 509 to move, the top rod 509 pushes the first baffle 511 to move, so that the first baffle 511 does not block the air outlet pipe 510 any more, then under the thrust action of the first spring push rod 512, the first baffle 511 gradually moves downwards, so that the magnetic pillar 501 overcomes the damping liquid in the cavity 503 and the thrust action of the spring push rod to move rightwards, so that the first baffle 511 blocks the air outlet pipe 510 again, meanwhile, the sliding rod 603 moves to the position closest to the bent rod 505, so that the pawl 604 does not contact with the ratchet 606 any more, the ratchet 606 starts to reverse by the acting force of the coil spring 609, and due to the action of the damper 616, the connecting shaft 607 rotates slowly, so that the ratchet 606 rotates slowly, the cam 611 rotates, so that the push plate 612 rises slowly under the thrust action of the third spring push rod 613, and the second blocking plate 615 re-blocks the intake pipe 601, so that the dirty air introduced into the cabinet 200 when the door 400 is opened is replaced with clean air.
In summary, when the door 400 is opened, the cam 611 rotates to make the push plate 612 rotate against the thrust of the third spring push rod 613, the push plate 612 drives the push rod 614 to move, the push rod 614 drives the second baffle 615 to move, the second baffle 615 does not block the air inlet pipe 601, the air purifier 602 conveys clean air into the box 200 from the air inlet pipe 601, dirty air entering the box 200 when the door 400 is opened is crossed with the clean air, when the door 400 is completely closed, the magnetic pillar 501 pushes the magnetic block 508 to move upwards, the magnetic block 508 drives the ejector rod 509 to move, the ejector rod 509 pushes the first baffle 511 to move, the first baffle 511 does not block the air outlet pipe 510, dirty air in the box 200 is discharged through the air outlet pipe 510, and thus the air in the box 200 is in a clean state, that dust and bacteria in the air are prevented from entering a culture dish to block the normal growth and development of cells, and the cell culture failure rate is reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (1)
1. A breather for cell culture, includes base (100), box (200), rack (300), chamber door (400), gassing subassembly (500) and air intake subassembly (600), its characterized in that: the top end of the base (100) is fixedly connected with the box body (200), the bottom end of the inner wall of the box body (200) is fixedly connected with the placing frame (300), the right side of the box door (400) is rotatably connected with the front surface of the box body (200), the right side of the box door (400) is movably connected with the air discharging component (500), and the right side of the inner wall of the box body (200) is movably connected with the air inlet component (600);
the air discharging assembly (500) comprises a magnetic column (501), a baffle plate (502), a cavity blocking (503), a baffle block (504), a bent rod (505), a bent sleeve (506), a guide rope (507), a magnetic block (508), a top rod (509), an air outlet pipe (510), a first baffle plate (511) and a first spring push rod (512), wherein the magnetic column (501) is in sliding connection with the left side of the inner wall of the baffle block (504), the baffle block (504) is fixedly connected with the bottom end of the box door (400), the cavity blocking (503) is arranged on the inner wall of the baffle block (504), the baffle plate (502) is positioned on the inner wall of the cavity blocking (503) and fixedly connected with the right side of the magnetic column (501), the bottom end of the bent rod (505) is movably connected with the right side of the inner wall of the box door (400), the outer wall of the bent rod (505) is in sliding connection with the bent sleeve (506), the top end of the bent sleeve (506) is fixedly connected with the box body (200), the top end of the bent rod (505) is fixedly connected with the guide rope (507), the outer wall of the magnetic block (508) is fixedly connected with the inner wall of the box body (200), the top end of the baffle plate (511) is fixedly connected with the left side of the inner wall of the baffle plate (511), the air outlet pipe (510) is fixedly connected with the first spring push rod (511), the top end of the first baffle (511) is fixedly connected with a first spring push rod (512), and the top end of the first spring push rod (512) is fixedly connected with the inner wall of the box body (200);
the air inlet assembly (600) consists of an air inlet pipe (601), an air purifier (602), a sliding rod (603), a pawl (604), a spring (605), a ratchet wheel (606), a connecting shaft (607), a transmission belt (608), a coil spring (609), a second spring push rod (610), a cam (611), a push plate (612), a third spring push rod (613), a push rod (614), a second baffle plate (615) and a damper (616), wherein the outer wall of the air inlet pipe (601) is fixedly connected with the right side of the inner wall of the box body (200), the air inlet pipe (601) and the right side of the air purifier (602) are fixedly connected, the left side of the air purifier (602) is fixedly connected with the right side of the box body (200), the outer wall of the sliding rod (603) is connected with the inner wall of the box body (200) in a sliding manner, the right side of the sliding rod (603) is rotatably connected with the pawl (604), the bottom end of the pawl (604) is fixedly connected with the spring (605), the bottom end of the sliding rod (603) is fixedly connected with the sliding rod (603), the right side of the connecting shaft (603) is rotatably connected with the ratchet wheel (606), the outer wall of the transmission belt (607) is movably connected with the ratchet wheel (606), the right side of the transmission belt (608) is movably connected with a coil spring (609), and the outer wall of the coil spring (609) is fixedly connected with the inner wall of the box body (200);
the outer wall of the connecting shaft (607) is positioned on the left side of the transmission belt (608) and fixedly connected with a damper (616), the left side of the damper (616) is fixedly connected with the box body (200), and the outer wall of the connecting shaft (607) is positioned on the right side of the ratchet (606) and fixedly connected with the cam (611);
the push plate (612) is positioned below the cam (611) and is in sliding connection with the inner wall of the box body (200), the bottom end of the push plate (612) is fixedly connected with a third spring push rod (613), the bottom end of the third spring push rod (613) is fixedly connected with the inner wall of the box body (200), the top end of the push plate (612) is fixedly connected with a push rod (614), the top end of the push rod (614) is fixedly connected with a second baffle plate (615), and the outer wall of the second baffle plate (615) is in sliding connection with the air inlet pipe (601);
a first strong magnet is fixedly arranged on the inner wall of the magnetic block (508), a second strong magnet is fixedly arranged on the inner wall of the magnetic column (501), and the first strong magnet and the second strong magnet repel each other;
the bottom end of the bent rod (505) is fixedly provided with a rectangular sliding block, and the outer wall of the rectangular sliding block is connected with the right side of the inner wall of the box door (400) in a sliding manner;
damping liquid is filled in the resistance cavity (503), and the top end of the guide rope (507) is fixedly connected with the sliding rod (603);
a slot is formed in the bottom end of the box body (200) and located below the magnetic block (508), and the magnetic column (501) is matched with the slot;
a spring ejector rod is fixedly arranged on the right side of the resistance plate (502), and the right side of the spring ejector rod is fixedly connected with the right side of the inner wall of the resistance cavity (503);
the spring (605) is specifically an extension spring, and the third spring push rod (613) and the accessory components thereof are arranged symmetrically about the vertical center line of the push plate (612).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110000438.XA CN112680350B (en) | 2021-01-03 | 2021-01-03 | Air interchanger for cell culture |
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| CN202110000438.XA CN112680350B (en) | 2021-01-03 | 2021-01-03 | Air interchanger for cell culture |
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| CN112680350B true CN112680350B (en) | 2022-11-08 |
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Effective date of registration: 20221014 Address after: A03, 6th Floor, Heavy Truck Kaoger Building, Daweizhuang East Road, Tianqiao District, Jinan, Shandong 250032 Applicant after: Zhongke Cell Regeneration and Rehabilitation Medical (Shandong) Co.,Ltd. Address before: 050000 No.9 Ganjiang Road, Shijiazhuang Economic and Technological Development Zone, Hebei Province Applicant before: Fu Xuebin |
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