Metal roof panel, the basic material is (aluminum, manganese, magnesium) alloy, grade 3004 (AI Mn Mg), because the 3004 aluminium sheet roll roofing price is 0.7~1.2mm thick, the structure strength is moderate, easy to weld and bend, except for standard connections In addition to technology, vents, entrances and exits, etc., can be welded on ...
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