ASTM A53 Carbon steel seamless pipe 1)OD: 1/4''-48'' 2)WT: SCH5-SCH160 3)Standard:A106 GRB, A53 GRB, API 5L,GRB, ASTM A53 Carbon steel seamless pipe Company NameShijiazhuang Beihai Pipe CO.,LTDBusiness TypeMANUFACTURE AND EXPORTERProductspiral welded carbon steel pipe Alloy steel pipe Welded steel pipe stainless steel pipe Galvanized steel pipeSpec DescriptionChineseEnglishOutside diameterWall ...