It is created from electrical glass cloth with alkali-free that has been impregnated with polyester-imide resin under pressure and heat. The thermal grade is class H insulation. With excellent electrical. Physical and mechanical property, wet-resistant and radiation-proof. Used for the insulating slots. windings. gaskets. strips of the dry-type transformer/railway transformer/traction motor/electrical equipment etc. polyester-imide glass cloth laminated, polyester-imide glass cloth laminateds