By optimizing composition, foundry method, melting process and heat treatment process, the rate of qualified castings was increased up to 85%.
通过对成分、铸造工艺、熔炼工艺及热处理工艺的优化，使铸件的工艺出品率达到85%。
youdao
应用推荐
模块上移
模块下移
不移动