미국 생산되는 메이저렌즈 거의 다 들어있을텐데
우리만 너무 안일한거 아닌가
http://www.ggilbo.com/news/articleView.html?idxno=974301
https://www.safety1st.news/news/articleView.html?idxno=3970
https://www.chemicalnews.co.kr/news/articleView.html?idxno=4675
https://www.google.co.kr/amp/s/m.khan.co.kr/world/world-general/article/202302081422001/amp