We are Changzhou Shuanghuan Thermo-technical Instrument Co.,Ltd. that established in 1957, the first professional manufacturer of thermo-technical instruments in China. Our products were used in many industrial field,such as
electric system, chemical plant, prtro-chemical,heat treatment,water treatment, etc.

We have below products:
1.variable area flowmeters with glass metering cone (gas or liquide)
2.variable area flowmeter with metal metering cone (gas or liquide)
3.oxygen rotameter in medical use
4.glass metering cone
5.bimetal thermometer (electrical contact, adjustable angle, bimetal indication thermal rsistance/thermocouple,explosion-proof)
6.glass thermometer (V-shaped, metal bushing, adjustable angle，plastic shell glass submarine, iron shell glass submarine)
7.thermocouple(TC)/resistance thermometer detector(RTD)
8.temperature gauge outside protector
and we introduced proprietary technology and equipments from Germany to produce variale area flowmeter with glass metering cone of series GA24,DK800 and VA/FA/SA10、20, and we can produce the customized product.

If you interested in our product,please not hesitate to contact us.