Home Supplier Discovery Metallurgy, Mineral & Energy Steel Pipe & Tube Longitudinal Seam Pipe Factories & Companies
Total 174 longitudinal seam pipe factories & companies found with 522 products. Source high quality longitudinal seam pipe from our great selection of reliable longitudinal seam pipe manufacturing factories.

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

Liaocheng Shengteng New Material Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Seamless Steel Pipe , Carbon Steel Plate , Galvalume Coil , PPGI Roof , H Beam
Mgmt. Certification:
ISO 9001, BSCI, ANSI/ESD
Factory ownership: Limited Company
R&D Capacity: ODM, OEM
Location: Liaocheng, Shandong

Shanghai Ali-Mama Steel Trading Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Steel Tube and Pipe , Steel Construction , Carbon Steel Pipe , Stainless Steel Pipe , PVC Pipe and PE Pipe
Mgmt. Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, OHSAS/ OHSMS 18001...
Factory ownership: Limited Company
R&D Capacity: OEM, ODM
Location: Shanghai, Shanghai

Tianjin RuiTong Iron & Steel Co., LTD.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: Erw Steel Pipe , Galvanised Steel Pipe , Square and Rectangular Pipe , Spiral Steel Pipe
Mgmt. Certification:
ISO9001:2015
Factory ownership: Limited Company
R&D Capacity: Own Brand, ODM, OEM
Location: Tianjin, Tianjin

Hebei Shengtian Pipe-Fitting Group Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Steel Plate; Steel Pipe
Mgmt. Certification:
ISO9001:2015, ISO14001:2015, ISO45001:2018
Factory ownership: Limited Company
R&D Capacity: Own Brand
Location: Cangzhou, Hebei

Wuxi Jianbanghaoda Steel Co., Ltd

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Steel Sheet , Steel Pipe , Steel Coil , Steel Bar , Steel Profile
Mgmt. Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, ISO 20000...
Factory ownership: Limited Company
R&D Capacity: OEM, ODM
Location: Wuxi, Jiangsu

Shanghai Mingshuo Steel Co., Ltd

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Stainless Steel Sheet , Stainless Steel Coil , Stainess Steel Pipe , Carbon Steel , Aluminum Coil
Location: Shanghai, Shanghai

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

EZ Steel Industrial Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: Carbon Steel Pipe , Stainless Steel Pipe , Copper Nickel Tube , Heat Exchanger Tube , Boiler Tube
Mgmt. Certification:
ISO 9001, ISO 14001, OHSAS/ OHSMS 18001, ANSI/ESD, ASME
Factory ownership: Limited Company
R&D Capacity: OEM, Own Brand
Location: Changsha, Hunan

Wanshida Steel (Shandong) Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Trading Company
Main Products: PPGI , Galvanized Coil , Galvanized Pipe , Carbon Steel Coil , Carbon Steel Plate
Mgmt. Certification:
Nil
Factory ownership: Limited Company
R&D Capacity: ODM, Own Brand
Location: Jinan, Shandong

Flk Pipeline Co., Limited

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company , Group Corporation
Main Products: Ss Pipe , Stainless Steel Seamless Steel Pipe , Steel Pipe , Welded Tube , Stainless Steel Thick-Walled Tube
Mgmt. Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, ISO 20000...
Factory ownership: Limited Company
R&D Capacity: OEM, ODM
Location: Wenzhou, Zhejiang

Liaoning Jinrong Machinery Import and Export Co, . Ltd

China Supplier - Gold MemberGold Member
Business Type: Trading Company
Main Products: Machine
Mgmt. Certification:
ISO 9000
Factory ownership: Limited Company
R&D Capacity: Own Brand
Location: Anshan, Liaoning

Guangzhou Kingmetal Steel Industry Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Steel Pipes , Pipes Fittings , Socket Fittings , Flange , Angle Bar
Mgmt. Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, ASME
Factory ownership: Limited Company
R&D Capacity: OEM, Own Brand
Location: Guangzhou, Guangdong

Nanjing Auto Electric Co., Ltd.

China Supplier - Diamond MemberDiamond Member
Business Type: Manufacturer/Factory
Main Products: Pipe Spool Fabrication Solution , Pipe Cutting and Beveling All-in-One Machine , High Speed Band Saw Cutting Machine , Automatic Pipe Welding Machine , Sub-Arc Girth Welding Machine
Mgmt. Certification:
ISO 9001, ISO 14000, HSE
Factory ownership: Limited Company
R&D Capacity: OEM, Own Brand
Location: Nanjing, Jiangsu

Shanxi Haina H-tech Precision Machinery Co., Ltd.

China Supplier - Gold MemberGold Member
Business Type: Manufacturer/Factory , Trading Company
Main Products: Welded Pipe Mill , ERW Pipe Mill , LSAW Pipe Mill , SSAW Pipe Mill , Slitting Line
Mgmt. Certification:
ISO 9001
Factory ownership: Limited Company
R&D Capacity: OEM
Location: Taiyuan, Shanxi
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Category

Manufacturing & Processing Machinery (117) Industrial Equipment & Components (114) Metallurgy, Mineral & Energy (81) Construction & Decoration (76) Tools & Hardware (61) Auto, Motorcycle Parts & Accessories (38) Electrical & Electronics (31) Chemicals (28) Instruments & Meters (27) Transportation (21) More

Management Certification

ISO 9001 (104) ISO 14001 (45) ISO 9000 (29) ISO9001:2015 (22) ISO 14000 (19) ISO 20000 (19) GMP (15) QC 080000 (15) ASME (14) HSE (14) IATF16949 (13) OHSAS/ OHSMS 18001 (12) ISO 14064 (11) BSCI (11) Others (10) ISO14001:2015 (10) ANSI/ESD (7) ISO45001:2016 (6) QHSE (6) ISO 13485 (5) GAP (5) ISO 22000 (5) ISO 29001 (5) BRC (5) ISO 17025 (5) HACCP (4) QSR (4) PAS 28000 (4) AIB (4) SA 8000 (4) BREEAM (4) ISO 50001 (4) LEED (4) SHE Audits (4) BS 25999-2 (4) EICC (4) FSC (4) SEDEX (4) WRAP (3) IFS (3) HQE (3) ISO 10012 (3) ISO9001:2008 (2) ISO14001:2004 (2) OHSAS18001:2007 (1) More

R&D Capacity

OEM (137) ODM (108) Own Brand (84) Others (2)

Annual Revenue

<1 Million USD (60) 10 ~ 50 Million USD (3) 2.5 ~ 5 Million USD (3) 1 ~ 2.5 Million USD (1) >100 Million USD (1) 5 ~ 10 Million USD (1) 50 ~ 100 Million USD (1) More

No. of Employees

5-50 People (41) 51-200 People (13) 201-500 People (4) Less than 5 People (4) 501-1000 People (3) Above 1000 People (1) More

Province & Region

Jiangsu (46) Shandong (39) Zhejiang (14) Hebei (13) Guangdong (12) Tianjin (11) Henan (9) Shanghai (7) Hunan (4) Anhui (4) Shanxi (3) Fujian (3) Sichuan (2) Beijing (2) Liaoning (2) Chongqing (1) Shaanxi (1) Hainan (1) More