2550| 26
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產(chǎn)品加工如圖 |
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點評
習(xí)慣按1/1繪圖,所以很擠,,放大2倍就好了
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點評
數(shù)量多,,3塊也做,這件不便宜了,,一天兩臺機(jī)能做1000件,,4塊錢一件,一天產(chǎn)值也有4000,,毛利2500,,
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