The paper briefly introduces the carbon and low-alloy steel forgings standard for pressure vessels.

本文简要介绍了压力容器用碳素钢和低合金钢锻件标准。

youdao

The paper briefly introduces the carbon and low-alloy steel forgings standard for pressure vessels.

本文简要介绍了压力容器用碳素钢和低合金钢锻件标准。

youdao