单击此处编辑母版标题样式单击此处编辑母版文本样式第二级第三级第四级第五级原材料的认识1胶膜(FILM)基材PVA(聚已烯醇)INK和网孔INK厚度加活化剂胶膜三色或四色重叠处INK膜厚变大活化后延展性最高可达30公分Learning MaterialAdd ActivatorInk MeshRaw PVA FilmINK ThicknessFilm is thicker in th