针对国内目前还不能自主设计塑料进气歧管注塑模具。

Aim to be not able to design mould of plastic air manifold by domestic technique.

youdao

具备良好的塑料、模具和注塑知识。

Good knowledge of plastic, tool and injection.

youdao

具备良好的塑料、模具和注塑知识。

Good knowledge of plastic, tool and injection.

youdao