Report copyright - Korean Chem. Eng. Res., Vol. 45, No. 5, October, 2007, pp. 442-447 · 2014-08-13 · 2-2-1. 코팅용액의 입도 분석 ... 개면 5B, 95개 이상은 4B, 85개 이상은 3B, 65개
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