... of high quality, competitive price, Best service.. Electrical insulation paperType:B.3.1Standard:GB/T19264.3-2003/IEC60641-3- ... *4200mmSpecial:Material free of strains,very flat,highest machanical and electrical strengthApplication: Our insulative transformer board is widely used as insulating ... composite materials, clothing, shoes, and also used in packing industry. Electrical insulation paper