No.169 Xuesong Road,National&High Tech Zone,Zhengzhou

Henan Hanwei Electronics Co., Ltd. (ISO9001:2000 certified), established in 1998, with approx. 400 employees, is expert in the R&D, manufacture, and marketing of a full line of gas-detection p...

1212 Fazhan Building, 159 Jiankang Rd

Henan Everyoung Exp&Imp Corp. Ltd. is professionally engaged in the R&D, production and marketing of humidity sensor and transmitter. Our team has been focused on humidity sensor for m...