carbon seamless steel pipe Size:1/2"-----24" W.T:SCH10----SCH160,STD, ... Material:API 5L /ASTM A106/A53 GR.B TYPESTANDARDODW.TLENGTHCARBON SEAMLESS STEEL PIPEASTM A106GR.B1/2"∼24"SCH10,SCH30,SCH40,SCH80,SCH160 ... ,STD,XS,XXS6-12MASTM A53GR.BAPI 5L GR.BSTAINLESS SEAMLESS STEEL PIPE304/304L1/2"∼24"SCH10,SCH30,SCH40,SCH80,SCH160,STD ...