铸件尺寸精度，表面精糙度及材质控制均达到国家标准要求。

All of the casting dimension precision, surface roughness and material control have reached national standard.

youdao

铸件尺寸精度，表面精糙度及材质控制均达到国家标准要求。

All of the casting dimension precision, surface roughness and material control have reached national standard.

youdao