This type of defect is formed during the hot rolling process of the raw material.
这种类型的缺陷形成的热轧过程的原材料。
This new type pilot cold rolling mill has been used successfully.
该新型冷轧实验轧机已经成功投入使用。
Airway is equipped with rolling ball-type air stopping valve;
导气管配有滚球式止气阀；
Airway is equipped with rolling ball-type air stopping valve;
导气管配有滚球式止气阀；
应用推荐