Baokunsheng Steel Trading

tianjin, China

We are offering black square pipe. Square and rectangular steel pipe( erw and seamless) detailed product description (1)standard: dinen 10210, din en 10219, astma500, gb/t 3094-2000, gb/t 6728-2002, gb/t178-2005, jisg3466, astm-a53.bs1387, jis-g3444, gb/t3091-2001 (2)material: 20#, q195, q235, q345, st 52, st 37, st 44, s355 jo h, s235 jr h (3)od: 15mm*15mm-600*600mm (4)wall thinkness. 0.5mm-25mm (5)length: as customer's requirement (6)packing: standard export packing in bundles (7)surface: bared, galvanized, oiled, color paint, 3pe; or other anti-corrosive treatment we can produce other specifications according to customers requirements. technique :hot rolled, cold rolled, erw, high-frequency welded inspection: with chemical composition and mechanical properties analysis; hydrostatic test, dimensional and visual inspection, also with nondestructive inspection applications water pipelines, waste waterlines , water supply mainsdeep tube wells casing pipes, gas/natural gas pipe lines, oil pipe lines, lpg & other non-toxic gas pipelinesindustrial purposes, sewerage system, industrial water lines/plant piping, vehicular chassis and frames, idlers & belt conveyorsagriculture and irrigation, scaffoldings, electrical cable conduits, cooling towers, antenna and telecom towers, cold storages, tabular polesfire protection systems, hvac, plumbing, fabrication industry, food processing, pharmaceutical, petrochemical, chemical, machine building, automobile