MAIN CHARACTERISTICS range of product MERTEN SYSTEM M aesthetic name M-ARC product or component type BLIND COVER PLATE device presentation CARRYING FRAME W CENTRAL PLATE additional information WITH RING SUPPORT COMPLEMETARY CHARACTERISTICS wiring device mounting FLUSH fixing mode BY SCREWS AND CLAMP colour tint ACTIVE WHITE GLOSSY colour code RAL 9016 material POLYCARBONATE BRILLIANT surface treatment ANTIBACTERIAL market segment RESIDENTIAL