... metal joint 3. Lightweight,self-contained in aluminum case with black power coat finish 4. Aluminum casing provides rugged protection of ... :brightness>1.0,Visual angle>100,fire resistance accord with international standardGlass Bead:brightness>2.8,Visual angle>30, ... metal:brightness>3.0,Visual angle>30,fire resistance accord with international standard MODEL No.RateSIZEpacking(cm)inchcmPSFC604:360″122× ...