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Lesson 1 The defects of synthetic leather
工業(yè)科技

        8.1.1 Pinhole or bubbleThe pinhole is the film ( or part) is penetrated by holes and the small bubble is on the surfaceof film. The main reason for the formation of pinholes and bubble is that there is no reasonablebalance between the evaporation rate and......(本文共 9383 字)     [閱讀本文] >>

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