we are the professional manufacturer of non-detachableand detachable spiral heat exchanger ,which had passed ISO9001:2000 system certificationMain features: 1. materialstainless steel or carbon steel 2. heat exchange area:1-150 sqm 3. type: non-detachable type or detachable type 4. used for gas-gas, liquid-liquid, and gas-liquid heat exchange Various specifications are available according to per customers requirements.