应用于对机械强度有一定要求的铸件，如汽车配件、机电配件、机械零件、电器元件。

It is used to those cast that need better mechanical capability, such as auto-fittings, electronic fittings, mechanical fittings, electronic component.

youdao

应用于对机械强度有一定要求的铸件，如汽车配件、机电配件、机械零件、电器元件。

It is used to those cast that need better mechanical capability, such as auto-fittings, electronic fittings, mechanical fittings, electronic component.

youdao