Yantai Dongrun Instrument Co., Ltd. is a manufacturer of instruments and meters with well-equipped testing equipment and strong technical force.With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in water treatment, biopharmaceutical industry and other industries.Our products are widely recognized and trusted by users and can meet continuously developing economic and social needs.We welcome new and old customers from all walks of life to contact us for future business relationships and achieving mutual success!