... ; 2. low noise,easy-operation description:BJ-01DX Automatic Bobbin Winders are specially designed to produce prewound bobbins with plastic ... , decrease thread broken and bobbin deformation.Automatic bobbin winder advantage :1.Automatic bobbin delivery system.2.Automatic bobbin supply checking system.3.Automatic ... , low noise, easy-operation, nice pattern of bobbins. Automatic Bobbin Winder BJ-01DX