knuckle pivot pin 中文意思是什麼
knuckle pivot pin
解釋
轉向節銷-
This paper analyzes and compares the ordinary heat treatment technology of q275 steel knuckle pivot pin with the quenching and backfiring technology
摘要分析、比較了q275鋼鉤尾銷普通熱處理工藝與鍛熱淬火回火工藝。
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