YHDC since 1992, is focus on the production and sales of power transformer, current transformers, hall effect sensors, transd ... ucer,power meters and other electrical components.And committed to providing safe and reliable products and solutions for power, communications, energy, industry and other industries. YHDC's mission is to ensure that our customers are both satisfied with our products, and also satisfied with the whole purchase process from beginning to end. In order to improve fast service and delivery, we sale and ship product from Poland,Spain, China, which can quickly meet customers' needs. As we continue to make relentless improvements, please do not hesitate to share your valuable thoughts with us and tell us how we can better serve you. read more