Gating hardware refers to the door closer, floor spring, hinge, bolt, lock, door suction, and widely used in wooden door, glass door, door profiles such as the artificial processing device made of metal. Gating hardware is very important in People's Daily life a kind of metal products for daily use, the main floor spring and door closers, commonly used in shopping malls, office buildings, residential buildings, exhibition halls and other personnel in and out of the frequent public places, its main function is to ensure that the door was open, accurately and timely can be kept normally open or close to the original position. Normally closed equipment for automatic shutdown function, ensure that can automatically shut down after the door was open. Spring after the general situation is completely open, can not automatically shut down, when not fully open, the guarantee can automatically shut down.
