In order to maintain the high quality of plumbings and faucets, HSIEN CHANG has the same level equipments as IAPMO lab, constructed by IAPMO recognized lab. Everyone knows that quality is a crucial commitment for service to customer. We realize that it is not an easy task to maintain a consistent quality for products even a top reputation organization still has to work meticulously to maintain a constant quality level for a common item. Any tiny neglect could cause failure in requirements of specification. Besides the system of quality management, well trained inspectors, measuring tools and gauges as well as the testing equipments, are essential elements for monitoring the process for quality achievements. The testing equipments are especially important for actual identification of the performance for the products. We have the most sophisticate testing equipments which even shared to our local municipal research center.