cross collar 中文意思是什麼
cross collar
解釋
雙輥環-
Cross recessed pan head screws with collar - product grade a
帶卡套十字槽盤頭螺釘.產品等級a -
Cross recessed pan head tapping screws with collar
帶卡套十字槽盤頭自攻螺釘
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