2596| 11
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求個(gè)升降機(jī)構(gòu) |
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點(diǎn)評(píng)
60公斤,一點(diǎn)點(diǎn)小,,哪那么容易斷,。考慮經(jīng)濟(jì)性的話,,配重應(yīng)該是最安全的了,。
配重安全嗎?萬一鋼絲繩斷了……想想就害怕
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