Aluminum alloy is still one of the main materials in hard packaging and soft packaging industry.

指出铝合金材料仍是各种硬包装和软包装的主要用材之一。

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Aluminum alloy is still one of the main materials in hard packaging and soft packaging industry.

指出铝合金材料仍是各种硬包装和软包装的主要用材之一。

youdao