Gridworx is the revolutionary mechanical stone hanging system. Our patent pending modified curtain wall construction technique is more cost effective than full bed masonry construction. With efficiencies in material, freight and labor Gridworx makes building with cut-stone affordable, Gridworx is the only system in the market that offers non-sequential installation of stone panels. This provides f

About EFCO Corporation -- Headquartered in Monett, Mo., EFCO Corporation, a Pella Company, provides innovative customer solutions to satisfy commercial design challenges from historical replication to cutting-edge new construction. EFCO manufactures architectural windows, curtain walls, storefronts, and entry systems designed for commercial construction needs, sold through independent sales repres

Steel Guard Safety Products is a distributor of noise reduction curtains, impact doors, roll up industrial safety curtains, curtain track systems, welding screens and more.

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The Board of Equalization administers California's sales and use, fuel, alcohol, tobacco, and other taxes and collects fees that fund specific state programs and plays a significant role in California property tax assessment and administration. It also acts as the appellate body for corporate franchise and personal income tax appeals.