API Tungsten Carbide Insert Dril Roller Rock Cone Bitl

API East TCI Tricone Bit,Roller Cone Bit,Rock Roller Bit,Rock Drill Bit,TCI Drill Bit,Well drilling Bit I-Product Specification: Bearing Type: Sealed Journal Sealed Type: Rubber Sealed Bearing/O-ring Sealed Bearing Hydraulic Design: 3 Nozzles with Snap Rings Condition: 100% new with original packing and documents MOQ: 1 piece,we have enough stock for normal sizes Brand name: East Packing: Wooden Case for export II- About Us Cangzhou East Drilling Tools Co.,ltd is a manufactue