High voltage electrical appliance industry is the main application direction of insulating materials. The technical level of Friend insulation materials is in the leading position at home and abroad. Friend materials are widely used in high-voltage inverters, high-voltage soft start cabinets, high-voltage switch gear, large and medium-sized generators, special motors (traction motors, metallurgical cranes, steel rolling motors, etc.), dry-type transformers and other high-voltage electrical equipment. Friend’s insulation material solutions with high-quality performance ensure stable and efficient operation of high-voltage electrical appliances in a long-term.