2755| 9
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這么設(shè)計(jì)合理嗎,M33怎么密封,? |
評(píng)分
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點(diǎn)評(píng)
個(gè)人感覺(jué)還是兩個(gè)實(shí)用,,錐口或球頭 的設(shè)計(jì)、檢測(cè),、加工都可能出問(wèn)題,。專業(yè)的事情交給專業(yè)人。
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