Ultra high speed overlock stitch machine 1.SIRUBA type; 2.2 needle , 4 thread; 3. ... and double-strand looper to form double lines of 401 stitch. Adopting strong charge lubrication mechnism, it is suitable for the ... and double-strand looper to form double lines of 401 stitch.2.Adopting strong charge lubrication mechanism.Speed:5,500Height of ...