The spinning of coal tar pitch raw material is key procedure of shaping in manufacturing carbon fiber.
煤沥青原料的纺丝，是碳纤维制造过程中加工成型的关键步骤。
2
The application and prospects of nanometer material and nanotechnology in spinning, weaving, printing, dyeing and finishing are expounded.
着重阐述了纳米材料和纳米技术在纺织、印染、整理等各道工序中的应用和发展前景。
3
Polypropylene is the trade name of polypropylene fiber, which is by the polymerization of propylene as raw material by the melt spinning of fibers obtained.