... (50in)50≥1400480001500≤643801380x1380x450 ZR series push-pull centrifugal fan.Frame, frames are made of galvanized board, thickness ... clearance, 25mm.Inlet wind protecting net, spraying paint steel wire, thickness 2.8mm.Electrical motor, national-grade aluminum alloy ... beautiful shape. Motor be specially used for high-performance fan, with updated design for automatic regulating device, the belt ...