2405| 1
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這個(gè)零件要多少錢(qián)?材料+加工費(fèi) |
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5塊錢(qián)?請(qǐng)問(wèn)你是怎么算出來(lái)的?要好好學(xué)習(xí)學(xué)習(xí)
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