Zhongshan Longsire Metal Products Co.,Ltd is a comprehensive corporation integrating product-manufacturing,selling and trade,Tung Chun Plating Seven Workship,which specializes in locks,cylinder,lock body,door control hardware and bathroom hardware. Longsire stands out in the field of mold design,processing,production,die-casting,polishing, plating and installation. With excellent human resources-400 staff and 80 technicians as well as administrators,the advantages concerning capital(RMB 8 million)and field for production(6,000m2)and the remarkable system of product design,technical research,product inspection and quality controlling,the corporation has performed a dominant capacity for the research and development along with manufacturing and processing for various specifications and diverse requirements.