Thin film of graphite. According to the inquiry about graphite related information, it is known that the film on the graphite insulation board is a graphite film. Graphite film is a highly crystalline film of carbon molecules. The thermal conductivity on the crystal surface of the film reaches 1500-2000W/m·k. It is used in components of electronic products and can turn point heat sources into surface heat sources to achieve ideal Heat dissipation effect.