Ceiling:The upper steel plate framework with brown hairline finish stainless steel edges,the bottom brown hairline finish stainless steel framework +translucent marble plate,the framework equipped with LED light strips(DD16009)
Side wall:The middle consists of cellular marble plates and brown hairline stainless steel strips; the two sides are mirror stainless steel plated with black titanium.
https://www.hz-aolida.com/machine-room-elevator/machine-room-passenger-elevator/brown-hairline-stainless-steel-passenger.html