Cardboard Corrugated Carton Box Making Folding and Gluing Machine Production Line Automatic Packaging Line Paper Cardboard

• Customization: Available
• After-sales Service: 24hours
• Warranty: 2 Years
• Certification: CE
• Automation: Automatic
• Suitable for: Paper
• Paper Thickness: Thick Paper
• Heating System: Steam Heating
• Width: 1800mm
• Layer: 5 Layer
• Design Speed: 120m/Min
• Working Speed: 80-120m/Min
• Single Facer Type: Vacuum Absorbable
• Corrugated Roller Material: 48crmo High Quality Alloy Steel
• Flute Type: Acbe as Customer Requirements
• Corrugated Roller Diameter: 320
• Electric Appliance: Imported Famous Brand
• Transport Package: Plastic Film Wrapping Outside, Container
• Specification: Corrugated type: A, B, C, E Optional
• Trademark: CZXY
• Origin: Cangzhou City, Hebei Province
• HS Code: 8441809000
• Production Capacity: 3-5sets/Month

Product Description

1800-5 LAYER CORRUGATOR LINE,  Steam Heating
(Design speed 120m/min. Production Speed 3ply 100-120m/min,5ply 80-100m/min)

2/3/5/7-layer Corrugated Cardboard Production Line

Higher productivity, better paperboard quality, adoption of central control system, simple and easy operation, convenient repair and maintenance, reliable and safe, greatly lower degree of manpower requirement; mainly consist of the following equipments.

1). Mill Roll Stand (Electrical or Hydraulic)

2). Preheater (Surface Paper & Core Paper)

3). Vacuum Adsorption Single Facer

4). Overhead Conveyer Bridge

5). Gluer (Duplex, Triplex, Quadruplex, etc.)

6). Double Facer (Heating Plate & Cooling Finalize)

7). Thin Blade Slitter Scorer

8). NC. Cut-off Machine

9). Stacker & Conveyer

10). Heating System (Steam, Oil, etc.)

11). Glue Kitchen System

12). Air Compression System

13). Electrical Control System, etc.

 

1. ZJ-V5B hydraulic shaftless mill roll stand
2. 

A,Technical parameters:

1. Main performance characteristics:

★Adopt hydraulic drive to complete the paper clamping, loosen, remove for the medium, translation left and right and others,the lifting of the paper adopts hydraulic drive.
★The brake uses a multi-point brake system, a gear disc structure, equipped with a cooling fan, Yadeke pneumatic components, stable tension, and long life.
★The large-diameter spindle design, the swing arm slides smoothly, and the steel guide rails are treated with high frequency treatment, which is super wear-resistant.
★The hydraulic cylinder is installed on a twisted shaft, which does not bear radial force and is easy to maintain.

1. Hydraulic system parameters:

Working pressure	Hydraulic cylinder working range	Hydraulic cylinder working range	Hydraulic station motor power	Solenoid valve working voltage
16---18Mpa	¢100×440mm	¢63×1300mm	3.7KW --380V -- 50Hz	220V--50 Hz

1. Mainly purchased parts,raw materials and origin:

Serial number	Name of main parts	Brands or place of origin	Remarks
01	Main shaft	Day steel production	¢242mm
02	Swing arm	Production by own	Resin sand gray ironHT250
03	Wallboard	Jigang prduction	Q235AWelding parts
04	Bearing	C&U
05	Main electrical appliance	SIEMENS	Contactor, relay, button
06	Hydraulic station	Shandong zaozhuang	Taiwan oil pump solenoid valve

1. paper trolley,track

1. Technical parameters:

Track length	6000mm
Paper loading method	Manual
Main frame	14 channel steel and ¢20mm cold drawn round steel

1. Structural feature:

★Track whole buried, The main frame of the 14th channel with ¢ 20mm cold drawn  round  welding,the track length 6000mm.
★Each paper with two stage paper trolley,and the paper from the two sides at the same time.

1. Mainly purchased parts, raw materials and origin:

Serial number	Name of main parts	Brands or place of origin	Remarks
01	Track and paper trolley	TangShang or JiNan	NO14 channel steel,Q235A,steel strip
02	Bearing	C&U

 

1. RG-3-600 triple preheater
2. 

A,Technical parameters:

Working wide	1800MM
Diameter of preheat roller	¢600mm
Angle adjustment range	360°
Angle shaft diameter	¢110mm×2
Steam temperature	200ºC
Steam pressure	1.2Mpa
Working power	380V    50Hz    3PH
Motor power	250W    short(S2)working system

1. Structural feature:

★Used for preheating single-sided corrugated paper and tissue paper to increase temperature, facilitate bonding, control moisture, and smooth cardboard.
★Each roller surface after grinding precision grinding and dealing with hard chrome plating, Surface friction is small, durable.
★Electric adjustment angle, and angle can rotation adjustment the preheat area in the range of  360°.
★The preheating roller adopts the flat head design, which complies with the national standard of Class I pressure vessels, and is accompanied by a pressure vessel certificate.

C,Mainly purchased parts, raw materials and origin:

Serial number	Name of main parts	Brands or place of origin	Remarks
01	Framework	Tang Steel Profile	Welded parts stress relief
02	Steam rotation joint	Quanzhou yujie
03	Preheater	Hangang or jigang	Q235Bpressure container board
04	Seat belt bearing	FuJian Fu Shan
05	RV Reducer	ShanDong DeZhou	RV75
06	Main electrical appliances	SIEMENS	Contactor, relay, button
07	Trap	Armstrong, United States	Float
08

3,SF-290S Single facer adsorption machine

A,Technical parameters:

Working width	1800mm
Design speed	120m/min
Economic speed	80-120m/min
Paper feed range	1850--850mm
Steam temperature	200ºC
Steam pressure	1.2Mpa
Working power	380V    50Hz    25KW

B,Structural feature:

★The cover suction negative pressure structure is adopted, and the high-pressure fan makes the corrugated paper adhere to the corrugated roller. It is easy to glue and bond, with simple structure and convenient maintenance.
★The frame adopts high-grade cast iron structure, high strength, good shock absorption, and is not deformed after tempering.
★The corrugated roller material is made of 48 crmo alloy steel, after tempering, medium frequency quenching, surface polishing, corrugated roller diameter ¢292 mm, surface hardness above HRC60 degrees (optional, tungsten carbide roll and surface hardness HV1200). Key parts of the tile roller, pressure roller bearings using wafangdian high temperature bearings.
★The glue unit can be moved out laterally as a whole, and it is easy to disassemble and maintain. The cylinder controls the glue to remove the glue sensitively. The copper plate scrapes the glue and cleans the glue. According to different paper materials and different vehicle speeds, the amount of glue is automatically controlled without any accumulated error.
★The main unit is equipped with a large-diameter preheater, which has concentrated heat and a large preheating area. No additional preheating device is needed. The lower preheating roller is ¢600mm. Upper preheating roller ¢400mm. Reasonable matching, electric adjustment of preheating wrap angle area. The core paper is equipped with a humidifier.
★The gearbox universal shaft is used for transmission, and the gears are subjected to high-frequency quenching and hardening treatment. Oil bed lubrication, life-long life. Variable frequency motor speed regulation, energy saving and high efficiency.

C,Main component parameters:

Part name Craftsmanship	Specification	Material	Surface treatment
Corrugated roller	Main roll¢292mm	50CrMAo Alloy steel	Chrome plating
Pressure roller	¢320mm	45#	Hardened round grinding chrome plating polishing
Glue roller	¢215mm	45#	Round grinding and pressing pit mesh chrome plating
Fixed paste roller	¢128 mm	45#	Round grinding chrome
Pre-heater	¢400mm	Q235B	Round grinding chrome
Pre-heater	¢600mm	Q235B	Round grinding chrome
Paper guide roller	¢110 mm	45#	Round grinding chrome

D,Main dynamic parameter:

Name	Power	Voltage	Frequency
Main drive motor	11KW	380V	50HZ
High-pressure suction motor	11KW	380V	50HZ

1. Main parts brand and origin:

Serial number	Main part name	Brand or place of origin	Remarks
01	Box rack	Self-produced	HT250
02	Rotary joint and metal hose	FuJian
03	Main drive motor	HeBei Yongshun	11KW Inverter motor
04	Bearing	C&U
05	Seat belt bearing	ZheJiang
06	High pressure fans	Shanghai yingfa	11KW
07	Pneumatic Components	AirTac
08	Low-voltage electrical appliances	SIEMENS	Contactor, relay, button
09	Frequency controller and PLC	Delta
10	Touch screen	Taiwan Weilun or Kunlun Tongtai	7.5 Inch

4,TQ15-2 Conveyor bridge

A,Technical parameters:

Working width	1800mm
Design speed	120m/min
Bridge layer	2  layer
Tension correction control	Electric correction wind suction tension
Working power	380V  50Hz   13KW

B,Structural feature:

★The part of the flyover is to lift the single-sided corrugated paper produced by the single-sided machine, lift it and transport it to the glue coating machine, apply the glue to the double-sided machine, slowly convey it, and have sufficient paper storage capacity, which is convenient for changing paper and order without stopping.
★Both sides are equipped with safety barriers and security herringbone pedal operation plane is equipped with safety ladder, ensure staff safety and ease of operation.
★All roller surface after grinding hard chrome plating.
★Lifting part of independent frequency conversion drive. The high-strength jointless belt has no corrugation, and the upper layer is conveyed slowly and over a long distance, so it is not easy to break the paper.

C,Main dynamic parameter:

Name	Power	Voltage	Frequency
Single-sided corrugated paper lifting motor	2.2KW	380V	50HZ
Bridge suction fan	3KW	380V	50HZ
Adjustable cardboard wide motor	250W	380V	50HZ

D,Main parts brand and origin:

Serial number	Main part name	Brand or place of origin	Remarks
01	The bridge main skeleton	Tiangang or tanggang	NO25channel iron,NO18beam,NO12channel iron,NO63angle,60*80squal steel and so on connected.
02	Guardrail	Tiangang	Ф42mm Low pressure fluid pipe
03	Paper lifting belt	Shanghai	PVC conveyor belt
04	Cardboard conveyor belt	Hebei	Parallel transport rubber band
05	Adsorption frequency conversion fan	ShangHai Yingfa
06	Frequency converter	TaiWan Delta
07	Bearing	C&U
08	Seat belt bearing	ZheJiang
09	Paper width adjustment reducer	Shangdong jinbuhuan reducer
10	Paper motor(frequency)	Hebei hengshui
11	Conveying roller and paper roller ,over paper roller	Tiangang Seamless steel pipe
12	Low-voltage electrical appliances	SIEMENS	Contactor, relay, button
13

5,GM-20 Double glue machine

A,Technical parameters:

Working width	1800mm
Design speed	200m/min
Economic speed	80-120m/min
Glue volume adjustment range	0.08-0.6mm
Number of anilox roller	32
Preheating cylinder temperature range	150-200ºC
Working power	380V  50Hz   7KW
Air source system	0.4-0.9Mpa
Pressing method	Pneumatic

B,Structural feature:

★The double glue machine is a corrugated paper conveyed from the flyover. After preheating, it is coated again with glue and then pasted into the double-sided machine to paste and bond to produce three-layer five-layer cardboard.
★Frame cast iron structure, stable performance, upper middle layer preheater diameter 400mm, increase paper temperature to facilitate glue paste, double pressure roller design glue evenly, stainless steel glue groove, automatic circulation glue supply.
★After quenched of the glue roller surface,the hole machining, surface grinding and doing balancing engraved anilox pit type, coating evenly, less consumption of plastic.
★The transmission of the glue unit is directly connected by the frequency conversion motor through the reducer, and the frequency conversion control ensures that the linear speed of the glue roller is synchronized with the double-sided machine and can operate independently. Use angle sensor, PLC, touch screen man-machine interface display. According to different paper quality, different speeds automatically control the amount of glue, according to the different corrugated shape automatically adjust the gap between the pressure rollers, without accumulating errors.

C,Main component parameters:

Part name Craftsmanship	Specification	Surface treatment
Glue roller	¢268mm	Round grinding and pressing pit mesh chrome plating
Fixed paste roller	¢146mm	Round grinding chrome
Pressure roller	¢150mm	Round grinding chrome
Paper shaft	¢110mm	Round grinding chrome
Preheating cylinder	¢400mm	Round grinding chrome

1. Main dynamic parameters:

Name	Power	Voltage	Frequency
Rubber roller active motor	3KW	380V	50HZ
Glue adjustment speed reducer	200W	380V	50HZ
Roller gap adjustment motor	200W	380V	50HZ
Rubber pump motor	2.2KW	380V	50HZ

E,Main parts brand and origin:

Serial number	Name of main parts	Brands or place of origin	Remarks
01	Glue roller and paste roller	Tiangang	45# steel
02	Preheat roller	Tiangang or Jigang	Q235B Container board
03	Bearing	C&U
04	Bearing with seat	ZheJiang
05	Pneumatic Components	AirTac
06	Low-voltage electrical appliances	SIEMENS	Contactor, relay, button
07	Glue reducer	Taiwan city-state or Wanxin
08	Main reducer	Taiwan city-state or Wanxin
09	Touch screen	Taiwan Vinylon or Kunlun Tongtai	7.5 inch
10	PLC and inverter	Delta
11	Timing belt	Germany OPTIBELT
12	Trap	Armstrong, United States	Float

6,SM-12 Double facer

A,Technical parameters:

Working width	1800mm
Design speed	120m/min
Economic speed	80-100m/min
Hot plate number	600mm×12 picec
Cooling section length	4 meters
Temperature requirements	160-200ºC
Steam pressure	0.8-1.3Mpa
Air pressure	0.5-0.6Mpa
Working power	380V  50Hz   22KW

B,Structural feature:

★The double-sided machine is a glued single-sided corrugated paper and facial paper laminated, heated platen heating, glue paste, stereotypes to produce flat cardboard.
★Surface of hot plate is dealed with grinding, hot plate width600mm,in total 12 pieces hot plate,Minister cooling stereotypes 4m.Hot plate is made adopt container board, enclosed pressure container certificate and inspection certificate.Internal thermal panels for partition isolation structure,s-shaped flow of steam, Steam, water separation function apparent,improve the using rate of steam.
★The hot plate adopts intensive gravity pressure roller structure. The pressure roller lifting adopts pneumatic structure. Standard 4 sets of spring pneumatic pressure plates.
★The hot plate adopts intensive gravity pressure roller structure. The pressure roller lifting adopts pneumatic structure. Standard 4 sets of spring pneumatic pressure plates.
★The upper cotton webbing is automatically centered by the correcting pneumatic valve, and the double cylinder is used to control the S-shaped cotton web tensioning device. The amount of tightening is large.
★The lower belt adopts straight-line manual rectification and tensioning mechanism, with simple and practical structure.
★The surface of the driving roller is coated with wear-resistant rubber, which is in a herringbone structure and has a medium-high height to ensure the smooth output of the cardboard.
★The main drive motor is a variable frequency speed regulating motor, which has a large torque at low speed, a wide speed regulating range, and energy saving and high efficiency.

C,Main component parameters:

Part name Craftsmanship	Specification	Surface treatment
Upper drive rubber roller	¢475mm	Covered with wear-resistant rubber
Lower drive rubber roller	¢334mm	Covered with wear-resistant rubber
Front and rear driven belt roller	¢215mm	Round grinding chrome plating polishing
Pressure roller	¢85mm and¢70mm	Round grinding chrome plating polishing
Setting roller	¢86mm	Round grinding chrome plating polishing
Top tension roller	¢155mm	Round grinding chrome plating polishing
Top tension roller	¢124mm	Round grinding chrome plating polishing
Up and down belt shaft	¢130mm	Round grinding chrome plating polishing

D,Main dynamic parameters:

Name	Power	Voltage	Frequency
Main drive motor	22KW	380V	50HZ

E,Main parts brand and origin:

Serial number	Name of main parts	Brands or place of origin	Remarks
01	Main skeleton	Tiangang or lai gang production profiles	NO.36channel and NO.16 I-beam
02	Drive wallboard	HeBei  HanDan	Q345
03	Heat board	Tiangang or Jigang	Q235B container board made
04	Main drive motor	HeBei HengShui	22KW Frequency motor
05	Cotton webbing	ShenYang	Cotton webbing thickness:9mm
06	Trap	BeiJing	Float
07	Low-voltage electrical appliances	SIEMENS	Contactor, relay, button
08	Pneumatic Components	AirTac or sono
09	Frequency converter	Delta
11	Bearing	C&U
12	Bearing with seat	ZheJiang

7.FY-C CNC thin knife machine
A,Technical parameters:

Working width	1800mm
Design speed	200m/min
Economic speed	80-100m/min
Mechanical configuration	5 Knife 8 lines
Min cutting width	160mm
Minimum indentation distance	70mm
Cutter wheel positioning accuracy	±0.5mm
Horizontal movement of the whole machine	±100mm

B,Structural feature:

★Synchronous servo motor controls the knife and wire. Automatic reset. Exact size. Order replacement time is 15 seconds. The two machines can be used to exchange orders immediately without speed reduction .
★ Schneider PLC control system, adopts CANopen bus system, has order management function, and is equipped with a speed synchronization signal input interface with the dryer .
★The human-machine interface adopts a 10.4 -inch color touch screen, stores 999 orders, and realizes automatic or manual order replacement . It automatically alarms if a fault occurs.
★ Two kinds of forms of pressure lines: a convex concave, convex to flat, two Species pressure line can form self- automatic changeover. The depth of the crimping wheel can be automatically controlled by the computer, and the line shape is good and easy to bend .
★Using a thin tungsten steel alloy knife, the blade is sharp and the service life is more than 8 million meters . The sharpening is controlled by computer, automatic sharpening or manual sharpening, which can cut and sharpen while cutting to improve production efficiency .
★Thin knife seat and crimping seat are supported by linear bearings, with accurate positioning dimensions and no accumulation error.
★Imported synchronous belt drive , accurate accuracy, long life and low running noise .

C,Main dynamic parameters:

Name	Power	Voltage	Frequency
Row of single-pole servo motors	1.05KW	380V	50HZ
Slitting inverter motor	5.5KW	380V	50HZ
Pressure line frequency conversion motor	7.5KW	380V	50HZ
Suction outlet frequency conversion motor	0.55KW	380v	50HZ

D,Main parts brand and origin:

Serial number	Name of main parts	Brands or place of origin	Remarks
01	Frame	ShanDong JiNan	Q345
02	Rail beam	TianJin	Q345
03	PLC Programming controller	Schneider	CANopen Bus system
04	HMI	Kinco	10.4 inch
05	Row knife servo control	Kinco	1.05KW
06	Row line servo control	Kinco	1.05KW
07	Proximity switch, photoelectric switch	Japan omron
08	Relay	Schneider
09	Main frequency conversion motor	HeBei	5.5KW×2
10	Horizontal motor	Shandong Jinzhan Reducer
11	Suction exhaust motor	ZheJiang	0.55kw
12	Solenoid valve, cylinder	AirTac
13	Bearing	HRB or C&U
14	Bearing with seat	ZheJiang Wuhuan
15	Tungsten alloy blade	Sichuan Boyan	¢260mm
16	Linear Guides	TaiWan	ShangYin

8.NC-120 NC cutter
A,Technical parameters:

Working width	1800mm
Design speed	120m/min
Economic speed	80-100m/min
Min. cutting length	500mm
Max. cutting length	9999mm
Cutting accuracy	±1mm,
Working power	380V  50Hz   16KW

 

1. Structural feature:

★It can store 200 units orders,replace the cutter specifications quickly and accurately,changing orders without stop,And enables networked computers to facilitate production management.
★Knife shaft drive gears are precision forged steel induction hardening, backlash-free transmission, advanced keyless connection, high transmission accuracy.
★Cutting machine adopts inlaid front steel blade knife spiral structure, serrated knife. scissors, shears, shear force, long blade life.
★Around feed rollers are used  the sun gear platen way, smooth delivery, pressure evenly, easy to crush plate board or cause blockage.
★This type of brake is energy storage type (non-energy brake), so in the process of production, the average power consumption is 1 / 3 of that of the ordinary NC cutting machine, saving more than 70% of electricity and achieving the goal of saving money.
★Exact and adjustable no gap gear to ensure precise blade engagement, running balance.
★Independent oil pump and filter are used to distribute two sets of copper pipes in each gear position to feed oil, lubricate and cool.
★Knife roller: fine quality forged steel material, the balanced, with good stability.

C,Main dynamic parameters:

Part name Craftsmanship	Specification	Surface treatment	Special treatment
Cross cutting the upper and lower knife axis	¢216mm	Conditioning	Dynamic balance
Front lower conveying roller	¢156mm	Round grinding chrome plating polishing	Dynamic balance
Rear lower conveyor roller	¢156mm	Round grinding chrome plating polishing	Dynamic balance
Paper shaft	¢160mm	Wrapped silicone	Dynamic balance
Output sun gear	¢160mm	Polyurethane	Intensive

D,Main dynamic parameters:

Name	Power	Voltage	Frequency
Main drive servo motor	12.5KW	380V	50HZ
Front feed motor	1.5KW(Frequency adjustment speed)	380V	50HZ
Rear feed motor	1.5KW(Frequency adjustment speed)	380V	50HZ

E,Main parts brand and origin:

Serial number	Name of main parts	Brands or place of origin	Remarks
01	Box rack	Self-produced	HT250
02	Knife roll	Tiangang Precision Forging	42CrMo
03	Full AC servo motor	Shanghai Futian	12.5KW
04	Paper frequency conversion motor	HeBei YongShun
05	Flying shear servo control system	Kobe, Germany
06	Motion control board	Germany MKS-CT150
07	Rotary encoder	Germany SIKI
08	Timing belt	Obi, Germany OPTIBELT
09	Tightening sleeve	XianYang ChaoYue
10	Bearing with seat	ZheJiang
11	Low-voltage electrical appliances	SIEMENS	Contactor, relay, button
12	Proximity switch	Omron Japan OMRON
13	Frequency converter	Detal
14	HMI	Kunlun State
15	Sun gear	ShenZhen

9,DMT-120 Paper sheet delivery and side conveyor
A,Technical parameters:

Working width	1800mm
Design speed	120m/min
Economic speed	80-100m/min
Maximum stacking length	3000mm
Maximum stacking height	200mm
Working power	380V  50Hz   6KW

B,Main performance characteristics:

★Adopted on the 16th channel welded.Electric adjustment of cardboard the size of the lateral output pneumatic control board, electrically adjustable conveyor speed.
★Cardboard sheets to the desired number or height requirements will be controlled by a foot switch out of cardboard.
★Vertical bin using wide flat belt conveyor transport.

1. Main dynamic parameters:

Name	Power	Voltage	Frequency
Main conveying motor	3KW	380V	50HZ
Lateral output motor	1.5KW	380V	50HZ
Walking motor	1.5KW	380V	50HZ

D,Main parts brand and origin:

Serial number	Name of main parts	Brands or place of origin	Remarks
01	Frame	Tiangang	Main frame No. 16 channel steel
02	PU Leather belt	ShangHai
03	Frequency converter	Taiwan Delta	3.7KW
04	Traverse reducer	ShangDong

 

1. ZJZ glue station system 

A,Technical parameters:

Manual glue production	0.8T
Glue making method	Two-step method
Main stirring	Horizontal stirring
Carrier agitation	Vertical stirring
Storage tank storage	1T
Working power	380V  50Hz   10KW

B,Main performance characteristics:

★Provide the starch adhesive to the corrugated single facer ,two glue machine and some other gluing equipment.
★Horizontal glue machine can meanwhile matched  with main body glue and carrier glue, and mixing, glue large.
★Glue system adopt glue cycle,rest glue go back to the glue square cylinder,Liquid level float automatic control,the back glue a bucket of glue liquid being beaten back with glue equipment storage bucket,cycle for glue,Save the glue solution,prevent the glue solution in the rubber plate pasting and caking precipitation.

11,ZQ steam system
A,Technical parameters:

1	Steam consumption	About 1.2T/h
2	Equipped with heat source	2t/h
3	Steam pressure	1.25Mpa
4	Maximum temperature in the pipeline	170-200ºC

B,Maximum temperature in the pipeline:

★It supplies heating energy for the thermal equipment of the production line to keep the working temperature stable. ★Each unit is designed as an independent small unit steam supply system, saving energy and easy adjustment. ★Each group of hydrophobic units is equipped with an empty bypass, which cools the equipment quickly when the production is stopped. ★Floating ball trap, with emptying device, stainless steel check valve, to prevent leakage. ★The metal hose is used for flexible connection between the piping system and the rotating heating components, so as to prolong the service life of the rotating joint. ★All steam pipes in the machine are made of seamless steel pipes to ensure the safety of use under normal pressure.

C,Main parts brand and origin:

Serial number	Name of main parts	Brands or place of origin	Remarks
01	Rotary joint, metal hose	Quanzhou Yujie
02	Trap	BeiJing	Float
03	Globe valve, ball valve	YuanDa China
04	Check valve	Zhengzhou Yuming
05

 

 

Factory Manufacture Process:



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