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並前往https://www.sheltercluster.org/sites/default/files/docs/ifrc-sru_cgi-roofing_manual_e-version_high-res.pdf

How to build safe roofs with corrugated galvanized iron (CGI ...

sive or core shelters especially in cyclone prone regions When building ... Corroded steel truss and CGI with white rust. (IFRC-SRU) ...

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