Large Air-Ventilation Fan

Features
(1) saving energy
(2) strong wind power
(3) convenient to move
(4) make low noise and light weight due to die-casting aluminum alloy.
(5) with good capacity,the reasonable structure and the strong suction.
(6) The protection grade is IP55
Application
(1) It's special manufactured for underground cable maintaince, shipping making.
(2) blowing bad gas when welding shipbui lding,canning,bridge.
(3) exhaust for fire fighting,piping construction and in other violent working situation for ventilation.