◇ spindle - using 45 # steel after fine cars made by the modulation process, to ensure adequate finish and dimensional accuracy, the basic structure consists of a wooden box, a wooden sliding wooden handle and activities. The operator manually pull activity boxes, air infiltration through the inlet port sack; the price of compressed wooden wind chassis, tank and air through the vent into the output duct, and finally into the smelting furnace installation stroke chassis, for iron. The difference between the new wind ventilators and ventilator or exhaust fan: The fan or exhaust fan only the limited outdoor air into the room air box, not on the old air heat exchange. In this case, the summer and winter use duct fan or exhaust fan wind chassis, will give indoor heating or air conditioning to cool to bring to bear the unbearable load; large fan or exhaust fan noise, it is impossible in the bedroom (especially the children's room, elderly housing) mounted fan; fan or exhaust fan is not air filter will cause indoor dust or respirable particulate matter pollution intensified. Wind chassis installation | air box | Rich ventilation provided by Dezhou Plumper ventilation plant. Dezhou Plumper ventilation plant (www.frtfsb.com) (www.frtfsb.com) strong, credible, in Dezhou fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Plumper ventilation equipment into the brilliant and you work for a better future!