COVNA Group, a professional manufacturer of flow control valve over 19 years with full experience in China. Electronic Valve, Pneumatic Valve, Soleniod Valve & Manual Valve are our main products. COVNA brand has gained a good reputation in the world market because of reliable quality & affordable price. Serious control on cost budegt assists us to offer fair price. Quality is our culture. Commitment of warranty for 12 months makes our customers have great confidence to promote our products.We have large stock of full range valves widely applied in diverse industries to fullfill your request with quick delivery. Welcome to ask for catalogue and field inspection of our office & factory.