The upstream and downstream chain of centrifugal induced draft fans

The centrifugal fan industry chain can be divided into two segments: upstream and downstream. The upstream chain mainly includes the production and supply of core components for centrifugal fans, such as impellers, blades, bearings, motors, etc. The downstream link is the application and sales of centrifugal induced draft fans, such as petrochemical, chemical, pharmaceutical, coal, metallurgical a