After establish in 1986, Royal obtained dozens of patents in order to give the best satisfaction to the customer by self design, manufacture, test run, and A/S with various experience and continued technology development.With this kind of technical back ground, we supply the high quality products to the domestic & oversea's customers. We knows the customer satisfaction is top value and which it tries constantly with the construction of the fast delivery and quick service network in order to repay the encouragement of the client everyone.