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外協(xié)做硅膠皮帶,皮帶周長(zhǎng)尺寸如何確定? |
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點(diǎn)評(píng)
你這哪是皮帶呀,應(yīng)該叫橡皮,如果是這樣你考慮一定的拉伸量都能用的, 按你以前的比例 , 算出480mm, 定做410mm可以了
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