... is the professional producer of covered spandex yarn, recently possessing one conventional covering factory and ... etc., is raw white and black, dyed or dope dyed, and flat or textured.The polyester we ... etc., is raw white and black, dyed or dope dyed, and flat or textured.Hangzhou uniwell textile ... want.Covered spandex yarn is broadly used for socks, sweater, seamless, denim, woven fabric, knitting fabric ...