Petrochemical industry, mainly including storage, refining, ethylene engineering, etc., has the most complex and harsh corrosion environment, especially for large-scale petrochemical industries located by the sea, which need to withstand dual atmospheric corrosion containing salt and sulfur, and have high requirements for corrosion protection of steel and other metal materials. The corrosion protection system of petroleum and petrochemical industry belongs to the field of heavy anti-corrosion, mainly involving various pipe racks, cracking devices, outer walls of various storage tanks, as well as the inner walls of crude oil tanks, intermediate product tanks and finished product tanks, buried pipelines, etc. in atmospheric environment. Meidong Biotechnology has long provided heavy-duty anti-corrosion and fast drying solutions for epoxy coatings in the petroleum and petrochemical industry, shortening customer construction cycles and providing wear resistance, corrosion resistance and other properties. It is widely used in various petroleum and petrochemical protective coatings and other scenarios.