Shell core and cold box coremaking are the main technique at present.

目前制芯工艺主要采用壳芯和冷芯盒制芯技术。

youdao

Shell core and cold box coremaking are the main technique at present.

目前制芯工艺主要采用壳芯和冷芯盒制芯技术。

youdao