roofing 1.material: steel and galvanized sheet 2.specification: 1170*420,1330*370 3.1000 pieces in a tray Product Introduction:Mingshi BrandA Strong Leadership HistoryFounded by Ming Shi steel roofing industry veterans with over 100 years of experience in stone-coated steel technology. Reliability, Quality and InnovationMingshi's design focus on simple, functional products that provide fast ...