Zhengzhou Ketan Instrument Equipment Co., Ltd.'s business scope includes sales of instruments and meters, electronic components, high and low voltage complete sets of equipment, electromechanical equipment, valves, hardware and electrical equipment, and pipe fittings; Installation of laboratory equipment; Mechanical and electrical equipment installation engineering (operated with valid qualification certificates); Technical development of laboratory equipment and accessories; Software development; Technological development of automation control equipment; Engaged in import and export business of goods and technology.