Hebei Chongsheng Special Steel Pipe Co.,Ltd.

CANGZHOU, China

we offer lsaw (longitudinal submerge-arc welded) uo(uoe)rb(rbe)jco(jcoe)dsaw (double submerged arc welded)quality standard:lsaw, dsaw:gbt3091 welded steel pipe for low pressure liquid deliverygbt9711 petroleum and natural gas industries--steel pipe for pipelinesis: 3589 steel tubes for water and sewageis : 1978-1982:steel tubes for use in transportation of oil; gas & petroleum products?bs: 1387 steel tubes for use for water, gas, air and steamastm a53 standard specification for pipe, steel, black and hot-dipped, zinc-coated, welded and seamlessdin 2458 welded steel pipes and tubesen10217 welded steel tubes for pressure purposes. technical delivery conditions. non-alloy steel tubes with specified room temperature propertiesapi 5l lsaw line pipesaw ssaw:syt5037 spiral submerged arc-welded steel pipe for pipelines for low pressure field fluid servicesyt 5040 spiral submerged arc-welded steel pipe pilescjt 3022 spiral submerged-arc welded steel pipe for municipal heat supplyis : 1978 steel tubes for use in transportation of oil; gas & petroleum products?astm a252 weldedand seamless steel pipe pilescoating standard:ansiawwa c104a21.4 american national standard for cement-mortar lining for ductile-iron pipe and fittings for wateriso 21809 petroleum and natural gas industries -- external coatings for buried or submerged pipelines used in pipeline transportation systemsdin 30670 polyethylen coatings of steel pipes and fittings steel grade:bs:1387, en10217:s185, s235, s235jr, s235 g2h, s275, s275jr, s355jrh, s355j2h, st12, st13, st14, st33, st37, st44, st52astm a 53: gr. a, gr b, gr c, gr.dapi 5l: a, b, x42, x46, x52, x56, x60, x65 x70gbt9711: l175, l210, l245, l290, l320, l360, l290, l320, l360, l390, l415, l450, l485, l555gbt3091, syt5037, syt 5040, cjt 3022:q195, q215, q235, q275, q295, q345, 08f, 08, 08al, 08f, 10f, 10, hg5, df08 sphc, m8.