Founded in 1993, Hangzhou Heavy Steel Pipe Co., Ltd is an integrated company integrating R&D, production, operation, trade and service. The company has its own brand WUFU and specializes in manufacturing of steel pipes for structures, electric power transmission project, pipeline of fluid use like water, oil and gas, piling, mechanical industry and municipal project. It has close relationships with many large steel corporations. So it supplies complete steel products according to customers’ requirements. The products it mainly supplies are: Longitudinally welded steel pipesERW:Size range: O.D from 21.3mm to 508mm, W.T from 2.3mm to 16mmLSAW:Size range: O.D from 351mm to 1500mm, W.T from 8.0mm to 40mmStandard:ASTM A53, ASTM A106, API 5L, EN10204, DIN1626Steel Grade: ST37, ST52, S235, S275, S355, GR A, GR B, X52, X60.,ect. Steel Hollow Sections (hot & cold formed)Square:Size Range: from 16*16mm to 400*400mm, W.T from 0.6mm to 16mmRectangular:Size Range: from 20*10mm to 500*300mm, W.T from 0.6mm to 16mmStandard:EN10210, EN10219, ASTM A500Steel Grade: S235, S275, S355.,ect Seamless steel pipesSize range: O.D from 21.3mm to 610mm, W.T from 2.3mm to 50mmStandard: EN10210, EN10216, EN10297, ASTM A53, ASTM A106, API 5L, DIN1629, DIN2440Steel Grade: E235, E275, E355, E470 ST37, ST44, ST52, S355J2H.,ect Hot dipped galvanized steel pipesSize range: O.D from 21.3mm to 219mm, W.T from 2.3mm to 6mmStandard: ASTM A53, ASTM A106, BS1387-1985, DIN2440/2444, EN10255Steel Grade: ST37, ST52, S235, S275, S355, GR A.,ect Hot rolled steel H beamsSize range: HW100-400, HM150-600, HN150-900, HE100-500, IPE140-500, HP305Standard:JIS G3101, JIS G3106, JIS G3136, JIS G3192, KS D3503, KS D3502, EN10034, EN10025, ASTM 572A, ASTM A6, ASTM A36Steel Grade:SS400, SS490, SM490, SN490, S235J0, S235J2,S235JR, S275JR, S275J0, S275J2, S355J0, S355J2, S355JR, S355J2+N, GR50, GR55, GR60, GR65, A36, A43, D36, DH36 Steel round bars (hot rolled & forged)Size range: from 16mm to 260mm & 300mm to 800mmSteel Grade: Q215, Q235, Q345, C45N, S355J2G3, 39NICRMO3, 42CRMO4, 18NICRMO5Surface: rough machine turnedLength: Minimum 3 metersTests: UT SEP 1921 class CC Hot rolled steel (strips, coils, sheets, plates, slabs)In commercial qualities and in accordance with DIN, EN, and ASTM standards, black Further steel products are welcome upon customers’ requests.