Cheapest Price Non-Standard Tungsten Carbide Sheet - YG6A Hard Alloy Valve Spool – Shanghai HY Industry
Cheapest Price Non-Standard Tungsten Carbide Sheet - YG6A Hard Alloy Valve Spool – Shanghai HY Industry,
1.Valve seat are malting with cemented carbide ball.
2.Better tightness and wear-resistant.
3.Smooth and glossy slope surface.