Many kinds of components are used in buildings. They are progressing or turning year by year. But, ordinary components are rarely recorded. It is very important to catch the development of buiIding components and their backgrounds. We have been making research about development of metal components in buildings. In this study, we researched about development of several metal components in buildings in Japan. These components were developed according to the change of building system. In this paper, we show the summary of development of metallic non-slip.
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