... : low-cost, Energy efficient,long life(2-4 times of Titanium Valves),extra resistance to corrosion,high temperature,wear and ... stations, oil refineries and other industries. Zirconium Ceramic Ball Valves Is a great ideal of substitute in strong corrosion situations ... : Manual,pneumatic,pneumatic-spring return and electric. Various special valves can be designed on demand. Furthermore, various high wear ...