2976| 9
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求助幫忙設(shè)計(jì)一個(gè)拆卸圓頭螺絲釘?shù)碾妱影馐郑O(shè)計(jì)一個(gè)能快速拆卸的頭就可以了 |
點(diǎn)評
內(nèi)部加上反絲螺旋線更好,參考斷絲取出器
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