Development of technology and instrument about producing PET filament used for sewing thread ⅲ Research on manufacturing technology of PET filament used for sewing thread 多级牵伸缝纫线用长丝技术及设备开发Ⅲ缝纫线用涤纶长丝生产工艺的研究
Yarn of synthetic filament ( other than sewing thread ), put up for retail sale 合成纤维长丝纱线(缝纫线除外),供零售用
High strength, low extension and low shrinkage polyester filament is used for making top grade sewing thread and embroidered thread. 高强、低伸、低收缩涤纶长丝是制作高档次缝纫线、绣花线的原料。