Lesson 3 The after-spinning technology of sea-island fiber
工業(yè)科技

        7.3.1 Collection7.3.1.1 MethodsThe purpose of collection is to combine the separate tow together to achieve reasonable lineardensity. There are usually one-step and two-step process.One-step methodThe tow ejected from several spinneret combined together t......（本文共 18857 字）     [閱讀本文] >>