... 100XT , 200XT, & 300XT , BOTN3000 , ARMACOR MProduct ProcessSpecial Feature Ⅰ HW Drill Pipe by welding—OD 3-1/2“to 5-1 ... specially desighed for deep and super deep well drilling,directional and horizontal wells2.API Standard Tool JointItem: NC26, NC31 ,NC38 ... Tuboscope 1)Quality Control-Tuboscope Inspection on all New Drill Pipes with Tuboscope Inspection certificates Certificate of Inspection ftom ...