最終更新日:2022/12/24
Letterpress and offset gloss varnishes normally have viscosities varying from 50 to 250 poises; they must stain the paper as little as possible, have insufficient tack to cause plucking, […]
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Letterpress and offset gloss varnishes normally have viscosities varying from 50 to 250 poises; they must stain the paper as little as possible, have insufficient tack to cause plucking, […]