手提袋生物降解一次性形容词千克重生产再生纸独创性大范围可回收
摘要:Simon Mitchinson,an English man,has developed a dispos- able rucksack that is strong enough to carry lunches and light goods and yet cheap enough to throw away when it is finished.The rucksack won a Gold Medal at the recent British Inven- tion Show.
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