Best quality core spun sewing thread variants of a product, the continous long fiber polyester production line core, using polyester staple fiber production package on teh outer surface of the core, to maximize reduce harshness treatment process after the repair, such as enzyme treatment, stone washing, hand scrub and cowboy clothing shot blast cleaning or clthing twill Construction: poly short fier cover filament yarn Applicant:jeans trousers, work wear Available size: 12s to 60s, 1-3 polied Advantage: Improve durability, avoid harsh treatment process after the suture frature repair, Higher than the tensile of polyester staple fiber line Excellent sewing performance and safety of stock line Recommended for automatic sewing machine(multi direction) good joint strength and wear resistance excellent color fastness