... ,X42,X46,X52,X56,X60,X65,X70,X High Quality Carbon Steel Drill Pipe We can produced drilling ... .32 E,X,G,S 0.280 7.11 EU2 7/8 73.0 9.72 14.48 ... Grade:E75,X95,G105,S1355) Length:R1:6.1-7.01mm, R2:8.84-9.75mm, R3:12 ... of API Specification, heat treatment is on the basis of the actual chemical analysis of each heat of ... produced in accordance to Standards of API 5DP, API7 &7-1, NS-1. RUSSIA RTN, RUSSIA GOST-R, ...