Such machinery feature a reasonable structure, smooth operation, low noise, beautiful stitches, usableness and durability. They have adopted the crankshaft drive. They can produce the handwork-copied single-thread chain stitches. Their unique thread hooking mechanism can make the stitches more stable and beautiful. They can be widely used for the ornamental sewing of top-grade fashionable dresses like the suits, men and women leisure garments, overcoats, western-steeple pants and shirts.

