Beijing Zhongyi Hua Shi produces temperature sensors, thermocouples, thermal resistances, bimetal thermometers and orifice plates. Including various models and specifications, integrated thermal resistance/couple, digital display instruments, pressure/differential pressure/liquid level transmitters, throttling orifice plates, fast thermocouples, float liquid level gauges, bimetal thermometers, etc.; sales hotline: 010-51670064, fax: 51670118. www.bjzyhs.com Free: delivery/technical support.