난연cd전선관 난연성시험동영상
Synopsis
시험방법은 KS기준에 따라 시험한 영상입니다. CD관 16mm로 45초동안 불꽃을 가해준뒤 불꽃을 제거 했을 때 계속 타는지 꺼지는지 ...
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