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explanation 1. material
A. water resistance paper...
Water resistance is a certain thing.
A flat and smooth thing.
B. sensitization agent .. It is an object for silk printing.
C. Acetic acid vinyl .. They are water-soluble adhesives.
D. YMCK paints .... They are the pigments for pictures.
E. Ultraviolet ray exposure machine ..
Ultraviolet ray light is set in the box.