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              Lesson 3 Milling and polishing
              工業(yè)科技

                      Generally high-grade synthetic leather should undergo finishing process. Through variousfinishing,the softness,smoothness and gloss of leather can be increased,or pattern varieties areimproved,such as suede,dry-milled leather,boarded leather and embossed ......(本文共 11099 字)     [閱讀本文] >>

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