G10/G11/ FR4/FR5 Epoxy glass laminated sheet are electrical alkali-free glass woven fabric base impregnated epoxy resin binder by processing under pressure and heat. Notes: G10 added flame retardants agent comes FR-4; G10 added high temperature resistance comes G11 G10 added flame retardants agent and high temperature resistance comes FR5. G10 reaches the international standards of IEC60893 EPGC201/NEMA LI-1:G10/DIN7735 HGW 2372/BS3953 EP-3 FR4 reaches the international standards of IEC60893 EPGC202/NEMA LI-1:FR4/DIN7735 HGW2372.1/BS3953EP-4.