Ruby Mica Co. Pvt. Ltd. Offers Mica Heating Element. Ruby Mica Co. Pvt. Ltd. Is the manufacturer and exporter of mica. Mica Heating Element is used in ironing appliances, toasters, hair dryers etc. Mica Heating Element is available in all design, wattage and voltage. Mica Heating Element is used for various purposes chiefly for electro-thermal insulation in many industries.