Lesson 2 The dipping technics

所屬欄目:合成革專業(yè)英語

In dipping process,the impregnating solution is completely and uniformly distributedbetween the spaces of base by pressing and squeeze. The addition of PU makes the base formintegral structure from a macroscopical view,and the product has similar handle w ......(本文共 28412 字 )     [閱讀本文] >>


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