Min. Order Reference FOB Price
1 Piece US$4,500.00-5,000.00 / Piece
Product Description
API 8 1/2" Oil Driling Bit, Double composite plate knife edge Product Description Our oil bit adopts double-row composite piece, which increases the shear force of the bit while sharing the fatigue wear of the front row of composite piece, and strengthens the wear-resistant degree at the ...