本标准规定了一般工程用铸造碳钢件的通用技术条件。

This standard specifies the general technical requirements of carbon steel castings for general engineering purposes.

youdao

本标准规定了一般工程用铸造碳钢件的通用技术条件。

This standard specifies the general technical requirements of carbon steel castings for general engineering purposes.

youdao