... time 5.>10 years export Product:aluzinc steel coil/galvalume steel coil for construction 1.standard:AISI,ASTM,BS,DIN ... spangle:zero spangle,minimum spangle,regular spangle,big spangle11.coil weight:2-20 tons12.full hard:available13.chromate: ... Workshop, agricultural warehouse, residential precast unit, corrugated roof, roller shutter door, rainwater drainage pipe, retailer booth Inside Door, doorcase, ...