Dear Sir, How are you doing? Hebei Senhai Pipeline Co.,Ltd. is the most professional manufacturer & Exporter for Steel Pipes & Steel Pipe Fittings in China, detailed products listed as below: 1. Seamless Steel Pipes ASTM A53 GR B,ASTM A106 GR B,API 5L GR B etc.; Size: 21.3mm~660mm; WT: 2mm~50mm 2. EFW Welded Steel Pipes,ERW Electric Resistance Welded Steel Pipes / Tubes ; LSAW Longitudinal Submerged Arc Welded Steel Pipes / tubes ; JCOE Welded Steel Pipes; OD: 60.3mm~1422.4mm; WT: 2.5mm~80mm 3. HSAW,SSAW Spirally Submerged Arc Welding Steel Pipes/Tubes ;DSAW Double Submerged Arc Welded Spiral tubes / Pipes; OD: 219mm~3620mm; WT: 5mm~26mm. 4. Square Hollow Sections/SHS, Rectangular Hollow Sections/RHS; OD20X20mm~600x600mm; WT: 0.8mm-~50mm 5. Anticorrosion of Steel Pipes 1).3PE and 3PP Oute..

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