1, frictional welding water well drilling equipment 2, Grade: E-75, X-95,G-105,S-135 3, length: R1, ... pipe meeting API 5DPOwn facility:API, ISO standerd (alloy steel E.X.G.S)OD :2 3/8,2 7/8 ... ,5(inch)UPSET: IU,EU, IEU1, frictional welding water well drilling equipment2, Grade: E-75, X-95,G-105,S-1353, length ... .6024.0335.795.000127.0 mm0.50012.70 mm frictional welding water well drilling equipment