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4.5元可否賺錢,? |
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點(diǎn)評(píng)
材料大概要2.4元了,,不過每件大概有0.35的鐵屑,,加工量不小,,走心機(jī)能干嗎
滲碳淬火后不變形?或者外觀能達(dá)到要求?
材料哪怕就是2.5元,,3萬件賣賣廢料都很不錯(cuò)了,,要是轉(zhuǎn)手給我2.5元我接單
你算下材料成本是多少
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點(diǎn)評(píng)
啥材料,有點(diǎn)高啊
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