100% wood pulp,good mechanical,Insulating material Type: P.4.1Standard: IEC641-3-2Apparent density: 1. ... content: 8%Raw material application:Unbleached sulphate pulp Insulating material used in enginess,electrical appliances, instrument etcSpecial:Smooth, tough, mechanical and electric ... width:1150mm,1000mmSpecial sizes and thickness are available upon request. Electrical Thin Paper