17J, 1138 ChangAn Road, Zhabei, Shanghai, Shanghai, China

CHANGAI Electronic Science & Technology Co., Ltd is a high-tech corporation that is specialized in studying, developing, producing and selling high quality gas sensors, analyzers & sys...

Room 1, 6th Floor, Unit 37, No. 142, Wuyi Road, Shahekou District, Shanghai, China (Mainland)

Seven Great Reputation Import And Export Trading Co., Ltd. is a new high-tech company dedicated to the development, production and sales of flow meters, heat meters, level gauges and pressure transmit...