Supply of Jinan smoke damper Fire damper experts ZF series of galvanized sheet air volume control valve, fire, exhaust valve series main features: 
 1, the use of automated assembly line production, size, precision, good interchangeability. 
 2, Damper frame and blade are made of high quality hot dip galvanized steel, beautiful patterns, and corrosion resistance;-bar linkage, shaft, etc. 45 # steel, galvanized, 
 High strength, good corrosion resistance. 
 3, the selection of the sleeve of sintered bronze oil content and flexible blade switch, friction torque, no maintenance. 
 4, the framework forming the entire sheet as a whole to take the edge riveting, welding deformation and leak less. 
 Varieties, complete specifications, according to user requirements, the choice of the applicable species, to achieve the best cost performance and reduce project cost. 
 Web site: www.dzfykt.com 
 Phone: 13969272212