Yongju Electric Machinery Co., Ltd. was founded in April, 1997. Since its establishment, it has been faithful to provide the highest quality products to meet the needs of all customers in industrial automation technology. Through the energetic and enterprising management team and the input of new products, it has become a professional sales manufacturer in the market. In the sensor field of "optical fiber", "photoelectric" and "proximity switch", Yaoyao is a leader in the industry. We have gained the reputation of reliable products. Customers also benefit from the wide range of services we offer.