11 Thermal radiators for the heating of buildings; High-performance heating elements for commercial appliances, namely, commercial cooking and food service equipment, specifically, refrigerators, stoves, ovens, and water heaters; Heaters for commercial appliances, namely commercial cooking and food service equipment, specifically, refrigerators, stoves, ovens and water heaters; Immersion heaters, disc heaters, and strip heaters, namely, mica strip heaters, ceramic strip heaters, and refractory strip heaters for commercial appliances; Cartridge heaters for plastic processing and packaging equipment; Air heaters, nozzle heaters, coil heaters, and band heaters, namely, mica band heaters, ceramic band heaters, and tubular band heaters for plastic processing equipment; Flexible heaters for freeze protection in industrial equipment; Box heaters for industrial packaging equipment