... the metal joint 3. Lightweight,self-contained in aluminum case with black power coat finish 4. Aluminum casing provides rugged ... have very stable market in the USA,CANADA,GERMANY,ETC 7.Smooth screen surface 8.Screen material:Matte white,glass bead ... metal:brightness>3.0,Visual angle>30,fire resistance accord with international standard MODEL No.RateSIZEpacking(cm)inchcmPSFC604:360″122×191149*15 ...