... pressure 63mpa Opening distance 120mm German Seals Rescue Door Breaker,Fire Rescue,GYKN-63-79/120-A 79KN Opening ForceMax ... rescueEspecially suitable for residential and commercial buildings, hotels, the fire rescue, quickly open the locked door to rescue the victim ... produced with self-locking function.2.When working in the place of explosion, very safe.3.Mini size,light weight,easy ...