Shandong Yunyi Heavy Industry Co., Ltd. is a large manufacturer of Pressure Vessels, Towers & Columns, Tanks & Drums, Heat Exchangers, Reactors, etc, which are widely used in oil refineries, petrochemical, rubber, food, brewery, etc. It has U and U2 certifications issued by ASME. With 50 years experience in manufacturing whole set of process equipment of oil, chemical, rubber, steel, thermal power energy-saving and environmental protection, we are now a key enterprise of chemical equipment industry in China, also we are the registered supplier of ExxonMobil, KBR, Entrepose, Enter, Sinopec, PetroChina, China Chemical, CNOCC, etc.