1.Quality steel plate made by punching and shaping. 2.Muti-bolted with elegant gearing equipment. 3.Imported chip with double circuit panel. 4.LCD display. 5. Electrostatic powder coating ,corrosion resistance 6. Dual alarm is provided for an additional protection in case of shocking and 3times wrong try. 7. 1-8digits Code-setting. 8. Emergency key and external electric supply. 9. Adjustable shelves. 10.Anchor hole.