specifications: 1) Type: ADC12 ; 2) Length: 64cm ; 3) Width: 10cm ; 4) Thickness: 5.5 - 5.8cm ; 5) Average weight: 7kg/item ; 6) Aluminum alloy ingredient: Cu 1.5-3.5, Si 9.6-12, Mg 0.3 max. Fe 0.9 max.; Zn 1.0 max. Mn 0.5 max.; Ni 0.5 max., Sn 0.2 max., Al remained ; 7) Characteristic: good pull-resistant intension, excellent capability in casting, adaptable to process of all products. 8) Usage: widely used in all kinds of aluminum alloy castings