... quality and durable 3.low price Dry powder extinguisher pressure gauge Pointer in the red zone undervoltage condition, in ... products: there are fire extinguishers with bolt, sealing, plastic, pressure gauge, all kinds of fire extinguisher valve, nozzle, internal straw, ... , nozzle, fluorescent ring, fire extinguisher tie ( belt ) and other more accessories wholesale supply.If you are interested in our ...