High speed interlock sewing machine 
 
Various machines of this line are  available to satisfy the various adorns. It can meet high quality and diverse seaming requirements. NL - 588 01 DD plain seaming, with adoption of the forced - feed oil - return system at the needle bar, the oil of the needle bar mechanism can be controlled effectively, and in this way oil leakage will never happen. The upper and lower silicon oil system prevents the needle from overtheating, and also avoids thread breakage. NL - 588 01 DD is double chain stich in 2 loopers.