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Home Supplier Discovery Metallurgy, Mineral & Energy Steel Pipe & Tube Seamless Square Factories & Companies
Total 2,000+ seamless square factories & companies found with 6,000+ products. Source high quality seamless square from our great selection of reliable seamless square manufacturing factories.

Jiangsu Ruilaibo Special Steel Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Cold Rolled Steel Products , Galvanized Steel Products , Carbon Steel Products , Stainless Steel Products , Hot Rolled Steel Products
Mgmt. Certification:
ISO 9001, ISO 9000
Factory ownership: Limited Company
R&D Capacity: Own Brand
Location: Wuxi, Jiangsu
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Liaocheng Jiadonghe Steel Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: Seamless Square Steel Pipe , Railyway Steel Rail , Cold Rolled Precision Steel Tubes Pipes , Galvanized Steel Pipe , Steel Sheet/Plate
Mgmt. Certification:
ISO 9001, ISO 9000, ISO 10012
R&D Capacity: OEM, ODM
Location: Liaocheng, Shandong
Production Lines: 4
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Shandong Kaimu International Trading Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Trading Company
Main Products: Stainless Steel Sheet , Stainless Steel Coil , Stainless Steel Pipe , PPGI Steel Coil , Galvanized Steel Pipe
Mgmt. Certification:
ISO 9001, ISO 14001, QC 080000
Factory ownership: Limited Company
R&D Capacity: OEM, ODM
Location: Liaocheng, Shandong
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Zhangjiagang Shengdingyuan Pipe-Making Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Seamless Steel Pipe
Mgmt. Certification:
IATF16949:2016
Factory ownership: Limited Company
R&D Capacity: ODM, OEM, Own Brand
Location: Suzhou, Jiangsu
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Chief Steel (Shanghai) Trading Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Steel Pipe , ERW Pipe , SSAW , Carbon Steel , Tube
Mgmt. Certification:
ISO 9001, ISO 14001, ISO 20000
Factory ownership: Private Owner
R&D Capacity: OEM
Location: Shanghai, Shanghai
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Ningbo General Union Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Trading Company
Main Products: Wooden Toy , Office Supplies , Stapler , Christmas Gift , Fashion Jewelry
Mgmt. Certification:
ISO9001:2015
Factory ownership: Limited Company
R&D Capacity: OEM, ODM
Location: Jinhua, Zhejiang
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Wuxi Tenide Metal Technology Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Trading Company
Main Products: Stainless steel products; Carbon steel products; Aluminum products; Copper products
Mgmt. Certification:
Others
Factory ownership: Limited Company
R&D Capacity: OEM, ODM, Own Brand
Location: Wuxi, Jiangsu
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Shandong Renai Lron & Steel Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: Wear Plate , Wear Resistance Steel Plate , Abrasion Resistant Steel Plate , Corten Steel Plate , Weather Resistance Steel Plate
Mgmt. Certification:
ISO 9001, ISO 14000
Factory ownership: Limited Company
R&D Capacity: OEM, ODM, Own Brand
Location: Liaocheng, Shandong
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Wenzhou Longwan Ezo Stainless Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Mixing Tank , Storage Tank , Emulsifying Tank , Cooling Tank , Milk Cooling Tank
Mgmt. Certification:
ISO 9001
Factory ownership: Limited Company
Location: Wenzhou, Zhejiang
Production Lines: Above 10
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Shandong Zhengde Metal Manufacturing Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Hot-Rolled Steel Coils , Cold-Rolled Steel Coils , Galvanized Steel Coils
Mgmt. Certification:
ISO 9001, IATF16949, HSE, QC 080000, BSCI...
Factory ownership: Limited Company
R&D Capacity: OEM, ODM, Own Brand
Location: Binzhou, Shandong
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East Ai Machinery Co., Limited

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Honed Tube , Chrome Plated Bar , Chrome Bar , Aluminium Tube , Hydraulic Cylinder
Mgmt. Certification:
ISO 9001, GMP
Factory ownership: Limited Company
R&D Capacity: ODM
Location: Wuxi, Jiangsu
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Shandong Standard Metal Products Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: 316 Stainless Steel Plate , 316L Stainless Steel Plate , 310 Stainless Steel Plate , 304 Stainless Steel Plate , 304 Stainless Steel Sheet
Mgmt. Certification:
ISO 9001, ISO 14000
Factory ownership: Limited Company
R&D Capacity: OEM, ODM, Own Brand
Location: Liaocheng, Shandong
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Zhejiang Xintongda Special Steel Manufacturing Co., Ltd

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: Duplex Stainless Steel Pipe , Austeniti Stainless Steel Pipe , Cooper Nickle Alloy Steel , Other Special Steel Grade Pipe , Duplex Stainless Steel Pipe Fitting
Mgmt. Certification:
ISO 9001, ISO 14001, GMP
Factory ownership: Private Owner
R&D Capacity: OEM, ODM, Own Brand
Location: Wenzhou, Zhejiang
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Tianjin Taihang Iron And Steel Co., Ltd

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: Carbon Steel Coil , Galvanised Coil , Color Coated Coil ( PPGI ) , H-Beam , Carbon Steel Tubes
Mgmt. Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, ISO 20000...
R&D Capacity: OEM, ODM
Location: Tianjin, Tianjin
Production Lines: Above 10
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Guangdong Yaolong Metal Technology Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Stainless Steel Flagpole , Aluminum Flagpole , Stainless Steel Light Pole , Aluminum Light Pole , Stainless Steel Bollard/Barrier
Mgmt. Certification:
ISO9001:2015, ISO14001:2015, ISO45001:2016
Factory ownership: Limited Company
R&D Capacity: Own Brand, ODM, OEM
Location: Foshan, Guangdong
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Shandong Yongan Special Equipment Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: Oxygen Cylinder , Gas Cylinder , Argon Cylinder , Co2 Cylinder , LPG Cylinder
Mgmt. Certification:
ISO9001:2015
Factory ownership: Limited Company
R&D Capacity: Own Brand, ODM, OEM
Location: Linyi, Shandong
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Anhui Clean Energy Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: CNG Gas Cylinder , Composite LPG Cylinder , Seamless Steel Gas Cylinder , Fire Fighting Gas , Cylinder
Mgmt. Certification:
ISO9001:2015, IATF16949
Factory ownership: Limited Company
R&D Capacity: Own Brand, ODM, OEM
Location: Anqing, Anhui
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Shandong Duohe Import and Export Co., Ltd

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Stainless Steel , Galvanized Steel , Alloy Steel , Carbon Steel , Copper
Mgmt. Certification:
ISO 9001, IATF16949
Factory ownership: Private Owner
R&D Capacity: OEM, ODM
Location: Qingdao, Shandong
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TIANJIN OUBAIGE METAL PRODUCTS CO., LTD.

China Supplier - Diamond MemberDiamond Member
Business Type: Trading Company
Main Products: Aluminum sheet , aluminum bar , aluminum bar , Copper Bar
Mgmt. Certification:
ISO 9001
Factory ownership: Limited Company
R&D Capacity: OEM
Location: Tianjin, Tianjin
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Chasing Technology(Changxing) Co., Ltd

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Gas Cylinder
Mgmt. Certification:
ISO9001:2015
Factory ownership: Limited Company
R&D Capacity: ODM, OEM, Own Brand
Location: Huzhou, Zhejiang
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Hebei Rich Pipe Fitting Mill Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: Forged Flanges , Steel Elbows , Steel Tees , Steel Reducers , Steel End Caps
Mgmt. Certification:
ISO 9001
Factory ownership: Limited Company
R&D Capacity: OEM, ODM
Location: Cangzhou, Hebei
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CHANGSHA XIANGJIA METAL MATERIAL TRADING CO., LTD.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Scaffolding(Including Ringlock Scaffolding , Cuplock Scaffolding , Kwickstage Scaffolding , Frame Scaffolding , Scaffolding Tube
Mgmt. Certification:
ISO 9001, ISO 14001
Factory ownership: Limited Company
R&D Capacity: ODM, OEM, Own Brand
Location: Changsha, Hunan
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Dongtai Zhonghai Super Alloy Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Nickel Alloy Bar , Nickel Alloy Plate , Nickel Alloy Flange Forging , Nickel Alloy Pipe & Fitting , Nickel Alloy Fastener
Mgmt. Certification:
ISO 9001, ISO 20000, BSCI, QHSE
Factory ownership: Limited Company
R&D Capacity: OEM, ODM
Location: Yancheng, Jiangsu
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Deruisi Co., Limited.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Stainless Steel Sheet/Plate , Stainless Steel Coil , Stainless Steel Strip , Stainless Steel Pipe/Square Tube , Carbon Steel Plate/Pipe/Square Tube/Coil/Strip
Mgmt. Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, ISO 20000...
Factory ownership: Limited Company
R&D Capacity: OEM, Own Brand
Location: Wuxi, Jiangsu
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Juancheng Shangkai Hair Products Factory

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Human hair products
Mgmt. Certification:
ISO 9001, ISO 14001, OHSAS/ OHSMS 18001, GMP
Factory ownership: Limited Company
R&D Capacity: Own Brand, ODM, OEM
Location: Heze, Shandong
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Changzhou Dlx Alloy Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Trading Company
Main Products: Copper Alloy; Zinc Alloy; Titanium Alloy; Nickel Alloy; Stainless Steel Alloy
Mgmt. Certification:
ISO9001:2015
Factory ownership: Limited Company
R&D Capacity: OEM, ODM, Own Brand
Location: Changzhou, Jiangsu
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Changsha Dalishen Hydraulic Engineering Co., Ltd.

China Supplier - Gold MemberGold Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Hydraulic Cylinder , Concrete Delivery Cylinder , Cold Drawn Seamless Steel Tube
Mgmt. Certification:
ISO9001:2015
Factory ownership: Limited Company
R&D Capacity: ODM, OEM, Own Brand
Location: Changsha, Hunan
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Liaoning Riqian Medical Equipment Co., Ltd

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: Welded Steel Pipes , Custom Steel Pipes , Steel Pipes , Special Shaped Steel Pipe
Mgmt. Certification:
ISO 9001
R&D Capacity: ODM
Location: Dandong, Liaoning
Production Lines: Above 10
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Shandong Xuanlin Metal Materials Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Cable Tray , Aluminum Foil , Copper Tube , Gi/PPGI , Stainless Pipe
Mgmt. Certification:
ISO 9001
Factory ownership: Limited Company
R&D Capacity: OEM, ODM, Own Brand
Location: Liaocheng, Shandong
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Shandong Xinliangxin Metal Material Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Trading Company
Main Products: Stainless Steel Plate , Stainless Steel Coil , Stainless Steel Strip , Aluminum Plate , Aluminum Coil
Mgmt. Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, ISO 20000...
Factory ownership: Limited Company
R&D Capacity: ODM
Location: Liaocheng, Shandong
Click here to send inquiry Add to Inquiry Basket
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Category

Manufacturing & Processing Machinery (1,282) Construction & Decoration (1,128) Industrial Equipment & Components (1,096) Tools & Hardware (805) Metallurgy, Mineral & Energy (743) Auto, Motorcycle Parts & Accessories (494) Electrical & Electronics (419) Light Industry & Daily Use (403) Packaging & Printing (384) Transportation (202) More

Management Certification

ISO 9001 (1,646) ISO 14001 (763) ISO 9000 (498) ISO9001:2015 (341) BSCI (289) ISO 14000 (280) ISO 20000 (237) IATF16949 (218) OHSAS/ OHSMS 18001 (217) QC 080000 (201) GMP (171) ISO 14064 (163) Others (159) HSE (157) ISO14001:2015 (153) ASME (81) FSC (80) ISO 13485 (73) SEDEX (69) ANSI/ESD (56) ISO 10012 (55) ISO 22000 (53) ISO 17025 (49) BRC (48) SA 8000 (46) HACCP (42) ISO 50001 (42) BS 25999-2 (40) ISO 29001 (38) WRAP (37) QHSE (37) EICC (37) QSR (37) GAP (35) PAS 28000 (35) IFS (35) LEED (32) AIB (32) SHE Audits (30) ISO45001:2016 (29) BREEAM (28) HQE (28) ISO9001:2008 (15) OHSAS18001:2007 (8) ISO14001:2004 (4) IRIS (1) More

R&D Capacity

OEM (2,277) ODM (1,932) Own Brand (1,329) Others (52)

Annual Revenue

<1 Million USD (1,081) 10 ~ 50 Million USD (33) 2.5 ~ 5 Million USD (26) 1 ~ 2.5 Million USD (22) 5 ~ 10 Million USD (18) 50 ~ 100 Million USD (14) >100 Million USD (14) More

No. of Employees

5-50 People (624) 51-200 People (378) Less than 5 People (80) 201-500 People (75) 501-1000 People (19) Above 1000 People (9) More

Province & Region

Guangdong (613) Shandong (570) Jiangsu (370) Zhejiang (328) Hebei (178) Fujian (118) Shanghai (104) Henan (98) Tianjin (81) Anhui (54) Hunan (43) Hubei (40) Jiangxi (29) Beijing (26) Shaanxi (22) Liaoning (15) Chongqing (11) Shanxi (9) Sichuan (7) Yunnan (3) Hainan (3) Hongkong S.A.R. (2) Jilin (1) Gansu (1) Qinghai (1) Guangxi (1) More

Member & Type

Suppliers with verified business licenses.Diamond Member
Suppliers with verified business licenses.Gold Member
Suppliers reviewed by inspection services.Audited Supplier

Recommended Factories

More

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Seamless Square Factories & Companies:

Welcome to one of the largest China B2B marketplace. This seamless square company list contains a wide range of seamless square factories serving all industries. This trusted vertical directory contains premier China suppliers/vendors, trading companies, custom manufacturers (OEM/ODM) and plants. They are experienced China exporting manufacturers offering tens of thousands of high-quality, competitive pricing products to distributors, wholesalers, resellers, and buyers. You can buy best budget seamless square in bulk or cooperate with some ideal ones of these credible suppliers for your import/export business on our b2b portal Made-in-China.com.
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