IADC126, 127, 217
Petroleum Drilling Tool & Accessory
Well Drilling Machinery, Water Well, Oil Well, Gas Well Ect
17 1/2" IADC126, 127, 217
Soft to Hard Formation
Journal and Rolling Bearing
Metal and Rubber Sealed
Blue, Red, Green or as Your Requirements
Kingdream. Lilin, Deris, Smith
Wooden Case or as Your Requirements
Cover almost all IADC code