Bei Jing Bei Ying hard alloy Co.,Ltd is the prefessional company for hard alloy. Accumulating large of experiences in pr...

Cemented carbide ball and valve seat are made of refractory metal WC and cemented metal Co or Ni. The alloy has high har...

This product has been widely used in petroleum, chemical, textile, pharmaceutical, construction, metallurgy, food, paper...

The main products are: hard alloy mechanical seal ring, alloy powder metallurgy mold, cutting tools, mining tools, wear ...