SEPCIAL FIBRE-YAK WOOL IS 35-45 MILLIMETERS LONG AND ABOUT 17 MICRONS IN DIAMETER.LARGE STOCKS OF SUPERIOR QUALITY,SOFT 牦牛绒:牦牛绒是一特种纤维,长度35-45毫米之间,细度在17微米左右。质优、货源丰富、手感柔软、光滑,是制作高档大衣呢的好原料。