Dacromet coating has the characteristics of high corrosion, high heat resistance, no hydrogen embrittleness, recoating and no environmental pollution. The salt spray resistance test performance of the product can reach 240 hours to 2000 hours according to the requirements of users. It is widely used in automobile, motorcycle, electromechanical, electric power, chemical industry, household appliances, railway, bridge, tunnel, shipbuilding, aerospace, national defense and military industry, etc.