Manufacturer of Concrete Masonry Units, Pavers, Retaining Wall Units, and Decorative Low-Rise Wall Units. #CarbonKind™ Distri ... butor of Spec Mix Preblended Mortars, Trenwyth Industries Architectural Masonry Units, and Spectra Glaze. Seven manufacturing locations serving Southern California from the Central Coast to San Diego: Oxnard, Sun Valley, Gardena, Orange, Fontana, Rialto, Bakersfield and Indio. read more