彩钢板

彩钢表面酚醛复合保温板用彩钢夹住b级防火等级的酚醛板。酚醛板kds酚醛板kds#彩钢板瓦楞纸板kds压板等kdskdskds#kdskds#kds_pla#kds#kds#kds#kds等。将酚醛板上...