Presspaper is made from 100% superior sulfate insulating wood pulp. It has good dielectric and high mechanical properties. Presspaper is widely used for transformers, electrical motors, electrical apparatus, meters, switches, etc. It also can be used to laminate with polyester film to produce insulation flexible laminates.

Electrical laminated wood sheet is widely used in manufacturing some devices for oil-filled transformer, such as upper and lower pressure plate, lead bracket and iron yoke cushion block. And it is used to make clamping device in mutual inductor. It can replace steel plate, insulation paper board, epoxy paper board and epoxy fiberglass board, which can lower the weight of the transformer and the cost of materials.

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