波多野结衣毛片-东北少妇露脸无套对白-免费国产-国产喷水视频-免费的视频app网站入口-福利91-h文在线观看-亚洲中文字幕无码爆乳av-91精品影视-玖草在线观看-日韩亚洲一区二区三区-亚洲国产精品二区-欧美激情精品久久久久-日韩区欧美区-亚洲第一成年人网站

    Provide a full overall project polyamide spinning technology solutions: 

    Covering varieties:

    1、PA6 fibers: FDY / HOY / POY  fiber, superfine fiber, functional fiber

    2、PA66 fibers: FDY / POY fiber, superfine fiber

    3、The ultrafine composite fiber

    4、PA56 fiber (bio-based)