CHANGZHOU ELECTRICAL INSULATION MAIN WORKS,initially established in 1958,entered the ranks of China’s Top 500 Electrical Machinery and Equipment Manufacturing Enterprises in 1993. Its main products include insulating enamels ,insulating oil,PET film ,BOPP film,nonwovens and its composites,five series up to over tens kinds.1730 Polyester wire enamel (Viscosity: 25~150 s), 1731 Polyester flat wire enamel , 1745 Modified polyester wire enamel ,1754-2 Polyesterimide wire enamel ,606 Polyamide―imide wire enamel , 505 Polyester imide wire enamel , 303 Polyurethane wire enamel and 1720 Polyvinyl formal wire enamel etc; Besides the bopet film (thickness: 0.025~ 0.25mm), we offer the opalescence and the colored pet film ; Polypropylene film (thickness: 0.012~ 0.04mm), Electrical polyester fibre nonwovens (thickness: 0.03~ 0.13mm).