sub coating 包底衣
sub-micron grain coating 亚微米晶涂层
PVDC sub-coating substrate; Used for producing inkjet printing film and backlit film, etc.
PVDC涂层；用于生产喷墨打印片、背喷片。
youdao
PU sub-coating substrate; good durability, good surface flexibility, used for inkjet printing film.
聚氨酯涂层；耐候性好，表面柔性较好，用于生产喷墨打印片等。
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