CKVC is the first production, to shut down close, the realization of DOUBEL BLOCK AND DOUBEL BLEED. high-performance dual-seal the manufacturer of double plug valves. Products are widely used in oil tanks, air stations, oil refineries, oil, natural gas storage and transportation and so on.Company research and development since 2000 has been double-seal plug valves, we have been efforts to improve valve performance, the design of many important improvements, it continued to be refined, new innovative design, perfect production technology and quality materials. All this makes an excellent dual-seal plug valves, and can fully meet the customer's requirements.