Firemen entered the service is all sealed anti-corrosive chemicals or hazardous substances or materials fire scene of the incident, and poisonous. harmful gases or the scene of the accident to find the source of a fire or accident, rescue personnel killed. for the fire fighting and rescue wearing protective clothing. Acid permeability (80%H2SO460%HNO330%HCL); 60min non-porous defense base permeability (6.1mol/LNaOH); 60min infiltration is not flame-retardant properties : Flaming time ≤ 2s ≤ 10s damage Flameless time ≤ 10 cm in length (without dropping melting phenomenon) weight " 7Kg