PA66 material: 1, has good insulation and dielectric properties, the use of safe and secure. 2, has good heat resistance aging, flame retardant. Nickel plating process: improve the wear resistance of the product surface, corrosion resistance. Sealing gasket: With screw tightening, it can make better sealing between the product and the plate.Widely used in energy storage, batteries, storage cabinets, high-current machines and equipment, and other scenarios.