... .Description : Grade B FR-4 Insulation Plates are electrical alkali-free glass woven fabric base impregnated epoxy resin binder ... 2).Size: 1020x1220mm, 1220x2440mm,1020x2040mm ; 3).Temperature grade:B glass(130°C). 3.Color: yellow, green,red, back, ... parts in electric equipment, such as electric generators, motors, switch board, pcb , etc. No.ProjectsUnitFR4 ResultG10 Result1Flexural strength ...