Elevator push button 1.Material: metal 2.Sensitive 3.Long life and competitive Description : 1. The push button adopts zinc alloy body with anti-impact design , the surface processing can be customizes by different electroplated.2. According with standard ISO4190, EN81,GB /T24477 3. the contact type :1NO,1NC,2No,2NC,1NO1NC.4. the locknut (regular type, super thin type )push button are installed ...