... air covered yarn factory, this yarn vailable for socks, underwear, knitting fabric, denim and sweaters. Features:(1)spandex coverd yarn(2)Air- ... Air cover yarn and Traditional cover yarn .It can be used as the material for socks,sweater , jeans ,knitting cloth ,woven ... T40300; A70200,T70200.4.products for seamless &small-circular knitting machineA2030,T2030;A2040,T2040;A2070,T2070;A4040,T4040;A4070, ...