Aluminum Casting, Valve, Water Pump manufacturer / supplier in China, offering Waterwise Fire Sprinkler System Wet Type Alarm Check Valve with FM Approval, 1800lpm 1% to 6% Foam Ratio Adjustable Water Foam Nozzle for Firefighting Water Cannon, Durable Aluminum Firefighting Fire Monitor Water Foam Nozzle with Self-Induction Tube and so on.