How to build Safe Roofs with Corrugated Galvanised Iron (CGI) Sheeting
Corrugated Galvanized Iron or Steel (CGI or CGS) sheets are at present the best known, most widely available low-cost roof covering material. There is an enormous variety of qualities of CGI sheets on the market, greatly varying in the different regions of the world. This manual aims to give guidance on how to choose the […]
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