1.Easy to use 2.Fire extinguisher performance is high 3.Used for A B C three kinds of fire 4.The price is low, preparati Powder fire extinguisher in our society today is widely used, it is not natural fire extinguishing properties has been questioned.1. powder fire extinguisher to raw material:Powder fire extinguisher Agents ingredient is sodium bicarbonate and diammonium as main raw materials, ...