1, frictional welding water well drilling equipment 2, Grade: E-75, X-95,G-105,S ... 2,5(inch)UPSET: IU,EU, IEU1, frictional welding water well drilling equipment2, Grade: E-75, X-95,G-105, ... 1353, length: R1,R2,R34 Upset: EU/IEU/IU drilling pipesDrill Pipe SizesSize (inch)WeightDesignationCalculated Plain-End weightOutside Diam. ... .000127.0 mm0.50012.70 mm frictional welding water well drilling equipment