T-5660-H is a kind of rigid laminate material, constructed of muscovite or pholog-pite mica paper with silicon resin. They are known by its excellent thermal resistance, good flame resistance,highdielectric strength, excellent physical strength, and little smoke by heating. The products have been widely used in the industries of household electricappliances (clothes irons, hair dryers, toaster, kettles, cooking appliances, microwaveovens, air heaters), metallurgy (frequency furnace, intermediate frequency furnace,arc furnace) , medical appliances, etc.