求翻译：铝合金密度低，但强度比较高，接近或超过优质钢，塑性好，可加工成各种型材，具有优良的导热性、导电性和抗蚀性。是什么意思？

The low density of aluminum alloy, but the intensity is relatively high, close to or exceed the high quality steel, plastic, can be processed into a variety of profiles, with excellent thermal conductivity, electrical conductivity and corrosion resistance.

Aluminum alloy, but low-density, high strength relatively close to or greater than high quality steel, plastic, can be processed into a variety of materials, with a good thermal conductivity, electrical conductivity and corrosion resistance.

The aluminum alloy density is low, but the intensity quite is high, close or surpasses the fine steel, the plasticity is good, may process Cheng Ge to plant the molding, has the fine thermal conductivity, the electrical conductivity and the corrosion resistance.

Aluminum alloy low density, high strength, approaches or exceeds the high quality steel, good plasticity, can be processed into a variety of shapes, with excellent thermal conductivity, electrical conductivity and corrosion resistance.

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