0.45mm DX51D Z120 PE Pre Painted Corrugated Roofing Sheet RAL9002 for Industrial and Residential Roofing 1.Product Overview 0.45mm DX51D Z120 PE Pre Painted Corrugated Roofing Sheet is a profiled color-coated steel product designed for industrial workshops, warehouses, residential buildings, agricultural facilities, equipment shelters, and wall cladding systems. The product uses DX51D galvanized steel as the substrate, with a total zinc coating weight of 120g/m². A polyester