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塑料件 鑲件問題 求助 |
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我看過兩本,全名忘了,一個(gè)是關(guān)于塑料的,一個(gè)是關(guān)于注塑工藝的。不過鑲銅螺母這事是從供應(yīng)商那里學(xué)到的,和他們打交道兩次就知道了
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