... spandex air covered yarn factory, this yarn vailable for socks, underwear, knitting fabric, denim and sweaters. Features:(1)spandex coverd yarn ... .our specifications as follows:1.products for large-circular knitting machine(for socks)A2040,T2040;A2050,T2050;A2070,T2070 ... T40200;A40210,T40210;A40300,T40300; A70200,T70200.4.products for seamless &small-circular knitting machineA2030,T2030;A2040,T2040; ...