Lesson 31　Calendering

Calenderingistheprocessofsqueezingasoftenedthermoplasticmaterialbetweentwoormorerollstoformacontinuousfilm.Theprocess,originallyadaptedfromtherubberindustry,isamajormethodofproducingplasticfilmandsheet.Thematerialgenerallyusedinthecalenderingprocessisflex ......（本文共 6299 字 , 2 張圖）     [閱讀本文] >>