Min. Order Reference FOB Price
20 Pieces US$1.00-20.00 / Piece
Product Description
Cobalt Binder Tungsten Carbide Seat 1. High strength, high wear resistance, high precision, good temperature resistance and good corrosion resistance. 2. Mainly used for the sealing of valves of oil pumps in petroleum industry`s containing wells, viscous oil wells, sea oil wells and high pressure ...