China Zhongwang Holdings Limited-------- the world’s second largest and Asia’s and China’s largest producer of industrial aluminium extrusion products. We can offer industrial aluminium extrusion products in all specification and cross sections to the customers all over the world. There is my product line architecture with doors and windows, aluminum curtain walls, aluminum and other industrial use. If only you need aluminium extrusion products ,let me know ,we can make a quotation for you . Ch...