We are a very professional manufacturer of Elevator Door Mechanical System. We have various standard fire door certificates. Elevator Explosion-rated doors suitable for explosive gas environment. Elevator Explosion-rated doors are an important type of elevator door system. It has explosion-proof motor and rotary encoder, explosion-proof box which makes the door opener have better explosion-proof performance. For more Elevator Spare Parts or Elevator Modernization, please feel free to contact us. Ex-mark: Ex d ib ⅡB T4 Gb Ex d ib ⅡB T4 Gb Ex ibD 21 tD A21 IP65 T135℃ Ex d ib ⅡC T4 Gb Ex ibD 21 tD A21 IP65 T135℃ Opening type: Up to 9 types opening type. Production rage: PL 600~6000 / LH 2000~6000 Patent number :2011202223839 Global products: EN81\TSG T7007\ GB7588\EU Pre-commissioning : Pre-define parameters of control system before delivery makes simple operating at the site