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特斯拉一體壓鑄為了什么 |
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點(diǎn)評(píng)
更關(guān)心成本,輕 ,比如車輪圈,用鋁厚度要到20,用鋼3MM就夠了,但鋼要加工到精度,再外觀,成本很高,鋁相對(duì)就容易了,
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