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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.

Baosteel Iron and Steel (Shandong) Group Co., Ltd

China Supplier - Diamond MemberDiamond Member
Business Type: Trading Company
Main Products: Carbon steel , Stainless steel , Profile steel
Mgmt. Certification:
Nil
Factory ownership: Limited Company
R&D Capacity: OEM, ODM
Location: Jinan, Shandong
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Hebei Leicheng Power Technology Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Trading Company
Main Products: Dry transformer/Oil-type transformer/Steel Angle/Stainless steel coil
Mgmt. Certification:
ISO 9001, ISO 14001, ASME
Factory ownership: Limited Company
R&D Capacity: ODM
Location: Shijiazhuang, Hebei
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Liaocheng Dajin Steel Pipe Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Cold Drawn Precision Seamless Tube , Profiled Tube , Alloy Steel Tubes , Rectangular Pipe , Steel Pipe Cutting
Mgmt. Certification:
ISO 9001
Factory ownership: Limited Company
R&D Capacity: OEM, ODM
Location: Liaocheng, Shandong
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Guangdong Shiji Feiyang Metal Manufacturing Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: Stainless Steel Coil/Strip , Stainless Steel Sheet/Plate , Stainless Steel Pipe/Tube , Stainless Steel Bar , Stainless Steel Angle Bar
Mgmt. Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, ISO 20000...
Factory ownership: Limited Company
R&D Capacity: OEM, ODM
Location: Foshan, Guangdong
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Jiangsu Pulda Metal Manufacturing Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Steel Sheet/Plate , Steel Pipe/Tube , Steel Coil/Strip , Steel Profile , Copper Plate/Pipe/Bar
Mgmt. Certification:
ISO 9001, GMP
Factory ownership: Limited Company
R&D Capacity: OEM, ODM, Own Brand
Location: Wuxi, Jiangsu
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Tianjin Weiming Industrial & Trading Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Solid Fence , Private Fence , Privacy Fence , Powder Coated , Paited
Mgmt. Certification:
ISO 9001, ISO 14001, OHSAS/ OHSMS 18001
Factory ownership: Limited Company
R&D Capacity: OEM, ODM, Own Brand
Location: Tianjin, Tianjin
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Shandong Yute Metal Products Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Aluminum Products , Copper Products
Mgmt. Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, ISO 20000...
Factory ownership: Limited Company
R&D Capacity: ODM, OEM
Location: Liaocheng, Shandong
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Linsen Metal Materials Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Trading Company
Main Products: ��PPGL�� Aluminum and zinc plating , Aluminum bar , Aluminum coil , Aluminum plate , Cold rolled coil
Mgmt. Certification:
ISO9001:2015
Factory ownership: Limited Company
R&D Capacity: OEM, ODM, Own Brand
Location: Liaocheng, Shandong
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Wuxi Qingfa Tong Metal Products Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: Tinplate , Stainless Steel Coil , Stainless Steel Sheet , Stainless Steel Pipe , Aluminium Plate
Mgmt. Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, ISO 20000...
R&D Capacity: OEM, ODM, Own Brand
Location: Wuxi, Jiangsu
Production Lines: 10
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Wuxi Aojiewei Metal Materials Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Trading Company
Main Products: Stainless Steel Coil , Stainless Steel Plate
Factory ownership: Limited Company
R&D Capacity: ODM
Location: Wuxi, Jiangsu
Main Markets: Southeast Asia/ Mideast , Domestic
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Hefei Lamat Piping Co., Ltd.

China Supplier - Gold MemberGold Member
Business Type: Manufacturer/Factory
Main Products: Malleable Iron Pipe Fittings , Grooved Fittings , Butt Weld Pipe Fittings , Forged Steel Flanges , Forged Steel Fittings
Mgmt. Certification:
ISO 9001, ISO 14001, ISO 20000, OHSAS/ OHSMS 18001
Factory ownership: Limited Company
R&D Capacity: OEM, ODM, Own Brand
Location: Hefei, Anhui
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Jinan Jiujin Steel Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: Steel Pipe , Steel Plate , Steel Bar , Stainless Steel Pipe , Stainless Steel Sheet
Mgmt. Certification:
ISO 9001, ISO 20000
Factory ownership: Limited Company
R&D Capacity: OEM, ODM
Location: Jinan, Shandong
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GengYuan Steel Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: Stainless Steel Sheet/Plate , Stainless Steel Coil , Stainless Steel Bar , Stainless Steel Pipe , Galvanized Sheet
Mgmt. Certification:
ISO 9001
Factory ownership: Limited Company
R&D Capacity: OEM, ODM
Location: Liaocheng, Shandong
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Shandong Xinhongsheng Metal Products Co., Ltd

China Supplier - Diamond MemberDiamond Member
Business Type: Trading Company
Main Products: Steel Pipe , Steel Bar , Steel Coil , Steel Sheet , Copper
Mgmt. Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, ISO 20000...
Factory ownership: Limited Company
R&D Capacity: Own Brand
Location: Liaocheng, Shandong
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Shandong Jiugang Tisco Steel Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Trading Company
Main Products: Stainless steel profiles , carbon steel , galvanized steel
Mgmt. Certification:
ISO 9001, QC 080000
Factory ownership: Limited Company
R&D Capacity: OEM, ODM
Location: Jinan, Shandong
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Shandong Hengyuan Materials (Group) Co., Ltd

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: Steel , Stainless Steel , Aluminum , Copper , Alloy
Mgmt. Certification:
ISO 9001
Location: Liaocheng, Shandong
Production Lines: 8
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TIANJIN FOREST IMPORT & EXPORT CO., LTD

China Supplier - Gold MemberGold Member
Business Type: Trading Company
Main Products: Steel
Mgmt. Certification:
Nil
Factory ownership: Limited Company
Location: Tianjin, Tianjin
Main Markets: North America , Southeast Asia/ Mideast , Africa
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Henan Steel Guang International Trade Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Steel Plate , Steel Tube , Angle Steel Bar , Round Bar , CNC Cutting Service
Mgmt. Certification:
ISO 9001, ISO 9000, ASME
Factory ownership: Limited Company
R&D Capacity: OEM
Location: Zhengzhou, Henan
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Liaocheng Xinruyi Trading Co., LTD.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: Seamless Steel Pipe , Stainless Steel Round Bars , Cold Drawn Steel Bars , Rock Bolt , Self Drilling Anchor Bolts
Mgmt. Certification:
ISO 9001
Factory ownership: Private Owner
R&D Capacity: Own Brand
Location: Liaocheng, Shandong
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Hebei Shengtian Pipe-Fitting Group Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Pipe Elbow , Pipe Tee , Pipe Cap , Pipe Reducer , Pipe Bend
Mgmt. Certification:
ISO9001:2015, ISO14001:2015, ISO45001:2018
Factory ownership: Limited Company
R&D Capacity: Own Brand
Location: Cangzhou, Hebei
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Jiangsu Kangtao Steel Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Steel Plate , Steel Sheet , Steel Coil , PPGI Steel Coil , Stainless Steel Tube
Mgmt. Certification:
ISO 9001, BSCI
Factory ownership: Limited Company
R&D Capacity: OEM, ODM
Location: Suzhou, Jiangsu
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Shandong Runhai Stainless Steel Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: Stainless Steel Sheet Plate/Coil /Tube/Strip , Galvanized Steel Sheet Plate/Coil /Tube/Strip , Carbon Steel Sheet Plate/Coil /Tube/Strip , PPGI/PPGL/Gi Coil , Aluminium Steel Sheet Plate/Coil
Mgmt. Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, ISO 20000...
Factory ownership: Limited Company
R&D Capacity: OEM, ODM, Own Brand
Location: Jinan, Shandong
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Tianjin Hongxin International Trade Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: Steel Pipe , Galvanized Steel Pipe , Galvanized Steel Coil , Black Steel Pipe , Light Gage Steel Joist
Mgmt. Certification:
ISO 9001
Factory ownership: Limited Company
R&D Capacity: Own Brand
Location: Tianjin, Tianjin
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Jiangyin Longyu Stainless Steel Pipe Industry Co., Ltd

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: Pipe , Steel Pipe , Stainless Steel Pipe , Seamless Stainless Steel Pipe , Precision Stainless Steel Pipe
Mgmt. Certification:
ISO 9001
Factory ownership: Limited Company
R&D Capacity: Own Brand
Location: Wuxi, Jiangsu
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Jinminghui Metal Materials Limited

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Group Corporation
Main Products: Aluminum , Copper , Stainless Steel , Carbon Steel , Galvanized
Mgmt. Certification:
ISO 9001
Factory ownership: Limited Company
R&D Capacity: OEM, ODM, Own Brand
Location: Wuxi, Jiangsu
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Shandong Aofeng Metal Material Co., Ltd

China Supplier - Diamond MemberDiamond Member
Business Type: Trading Company
Main Products: Stainless Steel Plate , Stainless Steel Coil , Galvanized Steel Coil , Prepainted Galvanized Steel Coil , Carbon Steel Coil Tinplate
Mgmt. Certification:
ISO9001:2015
Factory ownership: Limited Company
R&D Capacity: OEM, ODM
Location: Liaocheng, Shandong
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Liaocheng Esida Steel Materials Co., Ltd

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: Stainless Steel Sheet , Stainless Steel Pipe , Stainless Steel Plate , Stainless Steel Coil Tube , Stainless Steel Coil
Mgmt. Certification:
ISO 9001, ANSI/ESD, ASME
Factory ownership: Limited Company
R&D Capacity: OEM, ODM
Location: Liaocheng, Shandong
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Zhejiang Gaosheng Pipe Industry Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company , Group Corporation
Main Products: Seamless Pipe , Seamless Bright Annealing Tube , Stainless Steel , Electroplishing Tube , Pipe Fitting
Mgmt. Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, ANSI/ESD...
Factory ownership: Limited Company
R&D Capacity: OEM, Own Brand, manufacture and trading
Location: Huzhou, Zhejiang
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LUOYANG COMBAT TUNGSTEN & MOLYBDENUM MATERIAL CO., LTD.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Tungsten products , Molybdenum products , Titanium products , Tantalum products
Mgmt. Certification:
ISO9001:2015
Factory ownership: Limited Company
R&D Capacity: OEM
Location: Luoyang, Henan
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Tianjin Tiancheng Import and Export Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: Boiler Seamless Tubes , Heat Exchange Seamless Tubes , Tubing , Casing , Pipe Fittings
Mgmt. Certification:
ISO 9001, ISO 14001, ISO 14000, ASME, ISO 17025
Factory ownership: Limited Company
R&D Capacity: OEM, ODM, Own Brand
Location: Tianjin, Tianjin
Click here to send inquiry Add to Inquiry Basket
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Category

Manufacturing & Processing Machinery (1,283) Construction & Decoration (1,127) Industrial Equipment & Components (1,096) Tools & Hardware (805) Metallurgy, Mineral & Energy (742) Auto, Motorcycle Parts & Accessories (494) Electrical & Electronics (418) Light Industry & Daily Use (401) Packaging & Printing (385) Transportation (202) More

Management Certification

ISO 9001 (1,648) ISO 14001 (764) ISO 9000 (498) ISO9001:2015 (341) BSCI (289) ISO 14000 (280) ISO 20000 (237) IATF16949 (218) OHSAS/ OHSMS 18001 (217) QC 080000 (201) GMP (172) 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) QHSE (37) WRAP (37) QSR (37) EICC (37) PAS 28000 (35) GAP (35) IFS (35) AIB (32) LEED (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 (2,279) ODM (1,933) Own Brand (1,332) Others (52)

Annual Revenue

<1 Million USD (1,079) 10 ~ 50 Million USD (33) 2.5 ~ 5 Million USD (26) 1 ~ 2.5 Million USD (22) 5 ~ 10 Million USD (18) >100 Million USD (14) 50 ~ 100 Million USD (14) More

No. of Employees

5-50 People (623) 51-200 People (378) Less than 5 People (79) 201-500 People (75) 501-1000 People (19) Above 1000 People (9) More

Province & Region

Guangdong (613) Shandong (570) Jiangsu (369) Zhejiang (329) Hebei (179) Fujian (119) Shanghai (104) Henan (99) 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) Guangxi (1) Gansu (1) Qinghai (1) Jilin (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

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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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