... seamless steel pipe ThickThick ness: SCH 20 to SCH 140 (1.73-36.5mm) Standard: API 5L, API 5CT, ASTM A106.TM A106. seamless steel ... Seamless Steel PiSteel Pipe Steel Grade: A, B, X42, X46, X52, X56, X60, X65, J55, K55, 16Mn, ST37, ST52 Seamless Steel Pipe Packing:Packing: Labeled and bundled together with steel strip Seamless Steel Pipe ... gas, al gas, natural gas. Heat power. Etc.. seamless steel pipe