N/a manufacturer / supplier in China, offering 4X8 Feet Fr4 Fiberglass Sheet for Li-ion Battery Pack Electronic Insulation Epoxy Panel Board, High Dielectric 4X8 FT Fr4 Epoxy Glass Fiber Panel (≥ 35kV/mm) Fiberglass Cloth Sheet for Battery Electronics Insulation, UL94V-0 4X8 Feet Fr4 Fiberglass Laminate Epoxy Board for Battery Pack & Electronic Insulation and so on.