Pipe Fitting, Flange, Valve manufacturer / supplier in China, offering ASTM B16.5 A105 Carbon Steel Threaded Flange, 52mm Ammeter/ Digital Ampere Gauge +/--80A with Ampere/Current Sensor White Face for Car Truck Universal Yacht Boat, Hot Sales! ! ! 52mm Water Temps Water Temperature Gauge Meter with Temp. Sensor White Faceplate for Marine Boat Truck and so on.