酚醛树脂成分及用途?

来源:学生作业帮助网 编辑:作业帮 时间:2024/09/08 22:17:37
xTkr0J 0Yt2(`hBq"9L+WЕE CNOjwOʜz;wpP 4m0P-,o3?i?k0/sks)ðW?st/Bd]nuA62<V*EJk oYl(L.y;cky؜BEi0h/ ϲM"`t7iͶI<-e^tWPf'3 _aQE<|сK# ؝цmvy" 6 :m7xQ 5 م\M1[e*EtyK“C[57&4rbXYqRpس eWfNh%)M(e#4Gd0٦Vb^1, iy%l*q8)T ksr ;AIBE[SCW!GČ0xhф8TGN䫑b!^c'%xqވm{\҇jA?8ʥ(._6}Y?hA Ů%%)D.Ҝͥ~UfXh"=%l[I/8T8ʧ'}#9tél4