Transformer Radiator, Insulation Paper, Insulation Sheet manufacturer / supplier in China, offering Precision CNC Machined Low Dielectric Loss Fr4/G10 Epoxy Fiberglass Board Engineered for Copper Clad Lamination, Fr4 G10 G11 Epoxy Glass Sheet – Strong, Heat-Resistant, Ideal for Transformers, Motors & Electrical Panels, G10 G11 Fr4 Fiberglass Sheet – Durable Epoxy Insulation for High Voltage Motors & Electrical Equipment and so on.