shanghai zdoon building material co.,ltd is one of the main diliales od zdoon group,lolcated in jinshan district of shanghai near the hangzhou gulf and changjiang trianfle continent. it covers about 300.000 squate meters and the total ninvestment is RMB 300 million yuan . its advanced equipment and technology is introduced from switzerland, german, italy, japan, producing the high-grad aluminum extrusion profiles, and its production is 40.000tons aluminum profile, it is one of the alumunium extrusion manufactories having the huge amount of investment, most advanced technology, and high science and technology in chinese-east present.