With over sixteenth years' experience of research, development and manufacture of analytical sensors, Nengshi Analytical Sensor Co., Ltd. has accumulated rich OEM experiences and can meet worldwide buyers' import requirements specifically. Annual output topped 80,000 units: We have dealers in USA, Germany,France,UK,Spain, South Korea, Hong Kong, Taiwan and so on who have more than ten years' export experience. Since our establishment in 1996, we have been dedicated to improving our ...