steel tapping hole

 
  • 出鋼口

steel tapping hole的用法和樣例:

例句

  1. It has a rigid steel mouth,and deficient tenacity.The inferior Jian which I've ever seen is moldering and big.
    鋼口硬度有餘,韌性不足,我所見到的次類劍大多崩口多而且大。

steel tapping hole的相關資料:

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