FM Explosion Venting Wall Divided into FM cetified sandwich panel system and FM cetified single laminated steel plate composite thermal insulation system, FM cetified sandwich panel system consist of sandwich panel, explosion venting bolt, purlin and restraint cable, FM cetified single laminated steel plate composite thermal insulation system consist of sandwich panel, glass wool, purlin, single laminated steel plate, explosion venting bolt, purlin and restraint cable, light weight measurable and precise venting. Sandwich panel system are applied to petrochemical, pharmaceutical factory, nuclear power station, electronics, defense, tobacco, etc. Especially has the demand of FM certification.