真空热处理可广泛用于表面质量要求高，变形小，精密的工模具处理。

Vacuum heat-treatment can be widely used on precise tool and die with high surface quality and small deformation.

youdao

真空热处理可广泛用于表面质量要求高，变形小，精密的工模具处理。

Vacuum heat-treatment can be widely used on precise tool and die with high surface quality and small deformation.

youdao