★ 플라스틱 핸드폰 고리 만들기 ★(Making Plastic Mobile Phone Accessories)



플라스틱 판을 이용하여 핸드폰 고리를 만들어 봅시다~

열을 가했을 때 줄어들거나 녹는 성질을 가지는 플라스틱을 ‘열가소성 플라스틱’이라고 합니다.
열가소성 플라스틱은 열이나 압력에 의해 모양이 쉽게 바뀌고 고온, 고압에서 유동성을 가지므로 성형이 쉽기 때문에 모양를 만들 수 있습니다.


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4 Roommate of slain Idaho students will be allowed to testify that murder suspect had 'bushy eyebrows' 🔴 72 / 100
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7 Tesla’s Cybertruck is getting deeper discounts and production cuts 🔵 45 / 100
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