8252| 11
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菜刀刀柄如何加工的,? |
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點(diǎn)評(píng)
確實(shí),,對(duì)鉚接不太了解
這種鉚接見(jiàn)過(guò)多了,,有鍋爐、橋梁,、汽車大梁,、礦車架子、鋼結(jié)構(gòu)等分熱鉚,、冷鉚,。最小的有汽車剎車片鋁鉚、銅鉚,。
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