8282| 17
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如圖零件用什么材質(zhì)比較好,,有沒有標(biāo)準(zhǔn)件,? |
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點(diǎn)評(píng)
其實(shí)重的問題好解決啊,,可以在四個(gè)角各安裝一個(gè)小車輪,,這樣可以推動(dòng)了。
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