The fire resistance time limit of fire doors is divided into Class A, Class B, and Class C. Within the specification, fire doors that can meet the requirements of fire integrity and thermal insulation at the same time.

https://ztfiredoor.com/25441.html

whole sale single leaf door,fire-proof anti-theft door,whole sale single leaf door,fire rated flame resistant door glue,fire rated steel doors,fire rated steel door,fire steel door,fire and blast door,fire rated steel doors,whole sale single leaf door,fire proof steel door,fire steel door,fire stee l door,fire rated steel doors,fire resistant steel doors 2100 x 2100 mm,fire steel door