40 Ceramic glazing; Processing and finishing of glass; Glass tinting; Custom fabrication and production of glass, mirrors, architectural glass and metal; Manufacturing of building products for others, namely, aluminum framing systems for glass, storefronts, curtain walls, doors and windows for others; Fabrication of glass products for others, namely, insulated, laminated, tempered, decorative, bullet and blast resistant glass, and mirrors; Custom glass and mirror fabrication; Cutting of glass and mirror products for others