Series 5A-E3F&5A-E3R Floating Ball Valve，Produced by our company，have some virtues of perfect design，advanced process，reliable function. It’s seal parts are imported form foreign country and it’s key components have been produced by forging，heat treating and precision machining through high accuracy& high efficient lathe selected refining special steel，and widely used in the industries of petroleum，Chemical Engineering，medicine，hydroelectricity，grocery and mechanism etc. which are applicable to the service of high pressure，low temperature，corrosion. with top ranking high accuracy process equipments，has had annual production capacity of 180000 sets，having good reputation all over the world for it’s advanced technique，attractive workmanship and well credit.