Qingdao Dingzheng Import & Export Co.,Ltd is a joint-stock enterprise with four subsidiary factory for detergents,water treatment,<br />agriculture and petrochemical. It's one of the largest production base of chemicals in China,and has absolutely strength of <br />researching and developing the chemicals and its subsequent products with rich experience.We have approved the quanlity <br />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 <br />from all over the world to discuss and cooperation with us.We will base on the mutual benefit to serve you and develop together.