铝合金 5082 5182 5083 5086 5N01 6061 7075 7N01 AC1A AC1B AC2A AC2B AC3A AC4A AC4B AC4C AC4CH AC4D AC5A AC7A AC8A AC8B AC8C AC9A AC9B ADC1 ADC3 ADC5 ADC6 ADC10 ADC10Z ADC12 ADC12Z ADC14 3.3318 3.3307 3.3317 铝带