Co-Cr-Mo alloy as a human body implant material has a long history. because of its excellent corrosion resistance and biocompatibility. and is widely used in human hip joint materials. Co-Cr-Mo alloy in the human body is often in a passivation state; the formation of dense oxide film on the alloy surface prevents further corrosion of the alloy. https://pipingrockers.shop/product-category/kelp/