樓主: lipeiqianglpq
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這種小彎有什么好的方法,?請(qǐng)前輩們指教,! |
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點(diǎn)評(píng)
它是沖壓模的技巧,,具體我也沒設(shè)計(jì)過。鍋爐管道供應(yīng)商清楚,。
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