Yinxian Chengyuan Electronic Device factory specializes in developing, producing and marketing electronic instruments. It has been engaged in relays for many years.We make management strictly according to ISO9000 and establish perfect quality control system and inspection methods. At the same time we try to improve the quality of our products by constantly attracting and importing foreign advanced technology, ways of management and equipments. OEM order is our main production task. The customers at home and abroad speak highly of our products.