... /2”-22”)*2mm-70mm 3.Standard:GB,ASTM,API5L,API5CT,DIN,JIS and so on 4.Out Diameter:21.3mm ... .Usage:Low and middle pressure fluid transportation pipeline, Casing Tube, Boiler Pipe, Pertroleunm and natural gas industry Chemistry industry, Electric ... 11.Supply:seamless steel pipe, ERW steel pipe, steel casing tubing, hot-rolled steel pipe, spiral steel pipe, hot-galvanized steel pipe steel pipe(plain end)