4896| 13
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皮帶打孔問(wèn)題 |
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點(diǎn)評(píng)
人家那個(gè)不叫沖,應(yīng)該叫切。下面不是模具,是一塊實(shí)心硬木板。
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點(diǎn)評(píng)
沒(méi)搞過(guò)啊,全靠猜,全靠想。
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