Product features: 1. Alloy tray does not jump ball(We use high density alloy steel pallets). 2. Red protective key(You can't start the machine if the tray isn't in place). 3. Double deck usable woolen felt. 4. High quality wool hoop. 5. High strength new material housing(High strength new material shell, wear-resistant and not easy to break). 6. Electromechanical cooling system. 7. Elliptical vent.
