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在不同材質的塑膠製品的底部一般會標有數位,它標明了材質的類型和安全資訊.標有1、2、3、4、5是最安全的:標1:用於製作宝特瓶飲料瓶,可耐70度高溫.多為一次性用品.標2:製作藥瓶,食品袋,可耐110度高溫,標4:製作…
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