Aluminum Casting, Valve, Water Pump manufacturer / supplier in China, offering 1" 1-1/4" 1-1/2" 2" FM&UL Approved Vane Type Waterflow Detector, Firefighting FM&UL Certified Vdrs Vane Type Waterflow Detector with Retard, Plent 360lpm Firefighting in-Line Foam Eductor for Fuel Storage Area and so on.