Qingdao Dingzheng Import & Export Co.,Ltd is a joint-stock enterprise with four subsidiary factory for detergents,water treatment,agriculture and petrochemical. It's one of the largest production base of chemicals in China,and has absolutely strength of researching and developing the chemicals and its subsequent products with rich experience.We have approved the quanlity mangagement system,environmental management system.We have totally right for Import & Export. The products are sold to <br />many countries and regions,won good reputation and high popularity from all over the world.Sincerely welcome our friends from all over the world to discuss and cooperation with us.We will base on the mutual benefit to serve you and develop together.