【畀少少時間了解吓】
平時都會係咁見到膠樽身有個數字，呢啲係為咗塑膠分類而訂嘅編碼，知道呢啲數字點解，就可以醒目避開危險，用嚟包食物，識揀一定會揀5號PP膠嘅保鮮紙，有害物質嘅釋出機會不大，當然最好就唔好用咁多膠啦！仲有好多其他例子，大家望吓自己手上嘅膠幾號啦！
#塑膠分類 #1到7號 #你識幾多
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