C6240 high-speed needle bar clutch double needle flat sewing machine: ****** designed overall structure. Beautiful appearance, advanced performance, low noise, low vibration, and high stability. The double needle clutch needle bar structure ensures accurate and convenient sewing of corners, sharp angles, and straight seams. The synchronous feeding of the needle and the feeding teeth can prevent the sewing material from slipping and the stitching is neat and beautiful. Suitable for corner sewing and decorative sewing of women's underwear, denim clothes, men's and women's coats. GC6220 high-speed double needle flat sewing machine: featuring a newly designed overall structure. Beautiful appearance, advanced performance, low noise, low vibration, and high stability. The use of a needle bar and feeding teeth for synchronous feeding ensures strong adaptability in sewing without slipping between the upper and lower layers of the sewing machine. Suitable for high-quality visible and decorative seams.