We are offering nema grade glass epoxy sheets, fr4 epoxy fiberglass laminate sheet owns the character of high temperature resistance,high-intensity,flame-retardant grades to ul94-v0,high mechanical properties and dielectric properties,good heat resistance, good-smoothness, etc. Is the most stable one of the insulation board materials.g10 and fr4 epoxy glass laminated sheet are electrical alkali-free glass woven fabric base impregnated epoxy resin binder by processing under pressure and heat. G10 added with flame retardants agent