Yixing City Zhongrui Electronic Technology Co., Ltd. is a research, development, sales and service latching relay, current transformer, manganin shunt, as one of the high-tech enterprises. Products supporting the domestic meter industry. Our company strictly follows the IS9001: 2000 quality standard system, according to this standard to formulate strict incoming inspection, production process and product testing, and quality control system to ensure reliability and consistency of product quality consistent with industry standards and customer requirements, as detailed in WEB ctrelay COM