Dinghu Xia ,Male, July of 1944, Member of communist party of China,Senior engineer.
1980.01-1992.12   Established Ningguo Sealing Parts Factory and took as
                  the Plant Manager.
1992.12-2008.12  The Chairman and General Manager of Anhui Ningguo
                 Zhongding Co.,Ltd
2008.12- Now   The Chairman,General Manager and Secretary of the Party
               Committee
2007.01- Now  The Chairman of Anhui Zhongding Sealing Parts Co.,  
              Ltd(Listed company);

    Presidium member of China Rubber Industry Association and  Chairman of Rubber Products Branch(The Seventh);
Vice chairman of Automobile related Industry branch of  China Automobile Manufactures  Association;
    Executive Director of China Hydraulics Pneumatics & Seals Association;
    Chairman of Rubber & Plastic Sealing Branch of China Hydraulics Pneumatics & Seals ssociation(The Sixth);
    Vice Chairman of Rubber Division of China Chemical Industry and Engineering Society(The Eighth);