sharp drill 中文意思是什麼
sharp drill
解釋
尖鉆頭-
To create this product, we bore a bottom hole into the metal using a sharp drill bit while simultaneously carrying out tap processing
該機能的秘訣是採用全冷間鍛造前端部分。利用鉆頭尖銳的頭部往金屬上面打洞,同時進行螺紋加工。
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