liner
![]() |
|
Bi-metal liner is made up of both internal and external metal material .The outside is made of high-quality carbon steel , and the inside is made of high-chromium wear-resistant alloyed iron and it’s hardness can reach HRC62 after heat treatment. The inner surface is smooth and glossy, the size of inner hole tolerance strictly. It’s using life could reach 800 hours or more. liner |

