... grade: J55, K55, N80, L80, T95, Our product size:OD:1/2"-48"(21.3mm-1219mm)WT:SCH10-SCH80 ... X42\X46\X52\X56\X60\X65\X70\ X80API SPEC 5CT Size:OD: 1.05"(26.67mm)- 20"(508mm)WT: ... G3444 Gr. STK290,STK400,STK490,STK500,STK540JIS G3454 Gr. STPG 370,STPG 410JIS G3455 Gr. STS370,TS 410,STS 480JIS G3456 Gr ... . STPT 370,STPT 410,STPT 480JIS G3461 Gr. STB340,STB410,STB510JIS ...