用piercing mill造句子,“piercing mill”造句
來源:國語幫 1.41W
6、Briefly described in the article are the structure of the three - roll piercing mill and troubles and failures frequently occurring in the operation thereof.
3、barrel type roll piercing mill
1、three-roll piercing mill
5、stiefel mannesmann type piercing mill
2、Mannesmann piercing mill
4、piercing mill for metal billets