San Francisco : Architect and Engineer, Inc · leaf 182
non-absorptive non-slipmaterial. Terrazzo, ceramic, cement, composition as well as slate,marble and steel all are used for the tread surfaces. There are, of course, the standard safety treads composed of ametal base grooved with non-slip material filled in the grooves, and alsometal with steel… … BUILDING FOR WILLIAMS BROS. AIRCRAFT CORPORATIONE. H. Markwart, Engineer be provided and set in place. Where the plastic materials are used, thesetreads may be cast with carborundum or steel filings, mixed in the topsurfacing or troweled in the surface as the set begins to take place. Floors like…
Architecture · Building
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