樓主: zz102030
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求助此類工件制作需要哪些設(shè)備? |
點(diǎn)評(píng)
本來(lái)是開(kāi)口的,不管沖壓和拉拔估計(jì)開(kāi)口都會(huì)有一點(diǎn)回彈吧,估計(jì)每一批料都不一樣
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