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By certification 
Application:
Installation, debug and repair for refrigeration industry, ventilation duct, environment monit-or, navigation measurement, weather forecast, collection of the weather datum for outdoor busywork and fire department.
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For more details,please do not hesitate to contact us.Thank you!
Installation, debug and repair for refrigeration industry, ventilation duct, environment monit-or, navigation measurement, weather forecast, collection of the weather datum for outdoor busywork and fire department.
****
For more details,please do not hesitate to contact us.Thank you!
