Min. Order Reference FOB Price
1 Piece US$150.00-990.00 / Piece
Product Description
api quality 7 7/8 200mm three cone roller bit tricone oilfield bits drill head Product Description CSDRILL tricone bit used for geoloical prospecting,development of oil and gas,drilling water wells,blast holes and making holes for seismic prospecting,construction engineering.now there are eleven ...