... G105,E75,S135,X95,R780 OD:2-7/8'' to 5'' Thickness:9.19mm Length:R1,R2,R3 ... .2. Longway has advance production lines, adopts to American equipment.3. Longway produces drill pipes strictly ... drillingGrade:G105,E75,S135,X95,R780OD:2-7/8'' to 5''Thickness:9.19mmLength:R1,R2,R3 The ... GradeG105; S135; E75;R780; X95; DZ40;DZ50ODFrom 50mm to 127mmLengthR1; R2; R3UpsetEU; IU; IEU Usageoil exploitation; projects ...