Jinan Zhengyuan Aluminium CO., Ltd is a joint-stock and comprehensive company, which owns 2 large production & machining bases and one economic & trade corporation, conbiming production, machining with economic & trade itself. Mainly, The company produces, machines and markets plate of 1、3、5、8 series of aluminium and aluminium-alloy, including wide plates with every special specification, alloyed aluminum bar, aluminum wire, aluminum pipe and aluminum sectional material. Furthermore, with eight ...