... patent about this machine Specification: 1. Easy operation, Stead Step computer, similar to Dahao Motor, 10 inch LCD display , masss storage ... 10,000,000 stitches.2. Stable running speed: Max 1050rmp. Under 6mm stitch, the machine speed will not slow down . 11mm Stitch ... 3 basic features of this machine:a.Low noise, When speed is 1000, noise is 70 decibel.b.High efficient. With ...