1, frictional welding water well drilling equipment 2, Grade: E-75, X-95,G-105, ... .4. Longway has the reasonable price in the market.oil drill pipe meeting API 5DPOwn facility:API, ISO standerd (alloy steel ... well drilling equipment2, Grade: E-75, X-95,G-105,S-1353, length: R1,R2,R34 Upset: EU/IEU/IU drilling pipesDrill Pipe ... .000127.0 mm0.50012.70 mm frictional welding water well drilling equipment