The first LDG vessel was built at Shanghai Hudong Shipyard in 2004.  SunRui designed cathodic protection method and supplied a lot of sacrificial anodes for it.  LNG vessel is a special vessel for transportation and storage of Liquefied Natural Gas and it is the first time to manufacture this kind of vessel which has high technical level and difficulty made in China.  SunRui had supplied high quality products and guarantee it the reliable cathodic protection performance.