... -3/8",2-7/8",3-1/2,4",4-1/2",5",5-1/2"oil drilling pipe :-Drilling pipe ... 2-3/8",2-7/8",3-1/2,4",4-1/2",5",5-1/2",Steel Grade:E75, X95, G105 ... 180012) OD:2 3/8” TO 5 1/2” of label 1 or 60.32mm to 139.7mm3) Wall thickness ... 7mm4) Grade:E75,X95,G105,S1355) Length:R1:6.1-7.01mm, R2:8.84-9.75mm, R3:12 ... produced in accordance to Standards of API 5DP, API7 &7-1, NS-1. RUSSIA RTN, RUSSIA GOST-R, ISO 9001,ISO 14001 ...