N-8450D series, as the newly produced computerized twin needle products, apply premier energy-saving direct-drive computer-controlled technology and easy-to-understand, easy-to-use operation panel to increase work efficiency with help of automatic thead trimmer, reverse feed function, thread wiper and presser foot lift. Equipped with advanced lubrication system, it can realize clean operation with no stain of material to improve quality of products. High arm jaw and wide arm pocket make handling sewing article easier. Thanks to better design, it is easy to replace gauge part to satisfy customers requirement. This machine is suitable for shirt, leisure attire, jackets, jeans wear, etc.