Electric heating apparatus for industrial and commercial use; temperature-controlled portable insulated shipping containers; electrical heating cables; electric floor heating systems, namely, cables, electric mats and sensors for floor heating systems sold as a unit; apparatus for steam generating, drying and ventilating, namely, air process heaters, band heaters, bulk container heaters, cartridge heaters, circulation heaters, drum heaters, flexible silicone heaters, foil heaters, heavy duty ...