One of the best professional manufacturers of brass /copper fittings , expansion water tanks----Zhejiang Hengxiang Industrial Development Co., Ltd situates in , Zhuji City. It has a convenient location, close to Yiwu City, Hangzhou City, only 30 minutes' drive to Hangzhou international airport. Our company has more 500 staff members, owns self-operation import and export right, annual turnover can reach 150 million Chinese Yuan. Our company specializes in three major series of products: First, wall hung boiler parts series; Second, accessories for gas heaters ; and third, fittings for air conditioners, especially shut-off valves. The products accord with G/BT National Standard. ERP Network Management IS employed in management, and all the production procedures are strictly controlled.So we can supply the first grade products for home and abroad market, we are the biggest supplier in this business in China. We passed ISO9001: 2000 International Quality Management System Authen