Heat Master International is an ISO 9001 certified manufacturer of standard & custom heating products including electric appliance elements & heaters. Types of heaters include tubular, finned, flange, boiler, screw plug, circulation, over the side, immersion, strip, cartridge, mica & ceramic band, silicone rubber, duct, infrared radiant & in line heaters. Various applications include ... https://heatmasterint.com/