This project is 2013 my company for the manufacturing, petroleum installed 4 sets of 3000m3 polymer grade propylene spherical tank, the diameter of 18000mm * 45mm, the material is 07MnNiMoDR; 2 2000m3 spherical tanks with diameter of 15700 mm * 37mm, the material is Q370R; 4 3000m3 hydrocracking light brain tank, diameter of 18000mm * 26mm, the material is Q345R 2 3000m3 fine pumice; brain tank, diameter of 18000mm * 26mm, the material is Q345R. The success of the project manufacturing and field 12 tanks installed, add again for Dalian Jinding become stable supplier of oil.