Overview: 
  Fan 
  Application: 
  Widely used in chemical industry, light industry, food, medicine, metallurgy and other industrial and mining enterprises and various types of civil buildings ventilation, ventilation, cooling the ideal equipment. 
  Feature: 
  Low noise, large air volume, low power consumption, reasonable structure; 
  Piping without any bracket, so suitable for installation in the wall or within the pipeline; 
  Executive standard: 
  DB31/T 727-2013