Roofing Material Types For High Rib Roofing Sheet DETAILS: Nominal Thickness 0.15mm-1.2mm Nominal Width 600mm-1250mm Base Material Hot dipped g alvanized steel Substrate Standard ASTM A 653(M),JIS G3302,EN 10142 GraDesignation Z 60g & ndash Z 275g Standard ASTM A 755(M),JIS G3312,EN 10169 Paint PE, SMP, HDP, …
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