Crepe insulation paper is one of the main solid insulation materials in transformer oil-paper insulation system. It is made of high-purity insulating wood pulp and is machined from cable paper. The product has high strength, good elongation and neutral pH. This product is suitable for oil-immersed transformers, reactors and transformers for winding insulation. The basis weight of the substrate is up to 130g per square meter, and the longitudinal elongation is up to 200% or according to user requirements. Mainly used for oil-immersed transformers of Class A wrapped insulation and insulation paper for current transformers and high-voltage electric porcelain.