粘胶丝束纺纱法 rayon staple tow spinning

丝束纺纱制程 tow-to-yarn process

丝束直纺纱 direct-spun yarn

丝束纺纱机 tow to yarn machine

丝束纺纱方式 tow to yarn conversion

丝束直接纺纱机 tow-to-yarn direct spinning frame

丝束直接纺纱用 for direct spinning

丝束牵切成条纺纱法 tow-to-sliver break spinning