QILINSONGCAI

Automatic fluid-composition control machines and instruments; Automatic inlet control valves for reciprocating air compressors; Circuit boards provided with integrated circuits; Gas alarms; Gas mixers for laboratory use; Oxygen regulators; Pressure controllers for controlling the pressure of liquid, semi-liquid, and gaseous substances in industrial processes; Pressure sensors; Telecommunications hardware and recorded software for monitoring and alerting remote sensor status via the Internet sold as a unit