... , spinning machine, aviation, shipping, machinery industries and other fields.1.Model: 2A12, 6061, 6082, 7075, 7A04, 7A09, 2A50, 2A14, 6063, 5A05 ... , and so on.5.Technique procedures: die casting ,make mould,extrusion ,CNC (milling finish),cutting,anodized6.Certificates ISO 9001:2000 ISO ... which is between Shanghai and Suzhou City of China. 6061 Extrusion Aluminium square board plate