Our first single aluminum Sheet is usually pure aluminum Sheet, aluminum Sheet thickness is 3mm, but in order to reduce weight, improve the strength of aluminum plate, now used more Aluminum Alloy Sheet , usually choose 21 aluminium (symbol: LF21) rolling aluminum Sheet, the Sheet Aluminum Alloy strength than pure aluminum as high as 1 times. And the thickness of the aluminum plate is reduced from 3mm to 2.5mm. If it has higher requirements for sound insulation and heat preservation, the rock wool, slag wool, glass wool or foam treatment can be placed on the inside of the aluminum plate.

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