the features: 1. wildly used 2. alloy:1,3,5,8,etc series 3. temper:H1x,H2x,H12, ... )Executive standardthicknesswidthCoated plate and strip for construction1,3seriesH1x,H2x0.20~1.60500~1600YS/T431EL/X2765seriesH12,H22,H14,H24,H16,H26Lid material5052 ... .20~0.30500~1560Pull ring material5182H190.29~0.4560~1500ps 1.we supply the inner diameters are 200,300,350,405 ...