welded pipe steel pipe, steel tube OD:10mm-530mm WT: 0.3mm-35mm LENGTH:1000mm-12000mm Steel pipe of lining lining plastic steel pipe, steel tubeWe have advante ... in water, oil, gas transmission. We also can supply treads.Standard: ASTM A53; BS1387; API 5L, API 5CT, ASTM A53, ... , EN39, JIS Gp; JIS G3444, GB/T 3091 etc.Steel Grade:Q235,20#,ASTMA283,ASTMA53,ASTMA315,ASTMA106,ASTMA178,ASTMA210Thickness 0 ...