Min. Order Reference FOB Price
1 Piece US$500.00-1,500.00 / Piece
Product Description
8 Inch Tricone Rock Bits for Oil Well Drilling 1. Roller bits for Mining and Rock Drilling The strength and wear resistance of inserts are improved 1. Roller bits for Mining and Rock Drilling The strength and wear resistance of inserts are improve by using carbide inserts with high strength ...