Dope-dyed polyester spun yarn for knitting and hand-knitting, 20S-40S, more than 100 colors. Zhejiang Ruiyi Knitting, CO., Ltd, Dope- ... dyed polyester spun yarn for knitting and hand-knitting ... , 20S-40S, more than 100 colors.Zhejiang Ruiyi Knitting, CO., ...