ZL30 Chemical respirator for self,mining respirator
1.oxygen self rescuer 2.Duration more than 30 min 3.Inhaling resistance less than 245 Pa 4.escaping breathing apparatus
ZL30 Chemical respirator for self,mining respirator
1.oxygen self rescuer 2.Duration more than 30 min 3.Inhaling resistance less than 245 Pa 4.escaping breathing apparatus
ZL30 Chemical respirator for self,mining respirator