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技術(shù)求助 |
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點(diǎn)評
鋁管內(nèi)還有高壓縮的紙筒,,不會擰變形
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點(diǎn)評
也是個方案,,但這樣的話,成本會增加很多,,可能到不如直接把PP擋板改成鋁管,,周邊焊接+螺紋+膠水
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