Percision machined carbide balls and valve seats.

1. High strength, hign wear resistance, high percision, 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 sulfur resistant oil wells, etc.

3. Balls and seats are used with compatiable cemented carbide valve seats.

4. The finished surface, tolerance standard have reached the standards of the machine industry: G5, G10, G16, G40 and G100 of JB/T 9145-1999.

5. Precision machined cemented carbide balls of other grades and specifications are also available based on customers` demands.

6. Compatiable high precision valve seats can also be made.