Drill Pipe: Grade:DZ50,E75,X95,G105,S135,R780 OD: 42mm-127mm Thickness:6.5mm-12.7mm Length: ... . Detaild Product Description:Drill Pipe :Grade:DZ50,E75,X95,G105,S135,R780OD of pipe body:Φ42/Φ50/Φ60/Φ73/Φ89/Φ101 ... .7mmLength:R1,R2,R3 Steel GadeDZ50,DZ60,E75, R780, G105, S135,X95Specification OD2 3/8"-5"(60mm-127mm) Internal CoatingTC2000,TC3000 ...