circular duct fan inline duct fan in-line duct fan tubuler duct fan ventilation fan domestic fan ox fan (ox fan 315)
Housing is made by Galvanized steel sheet materials chould be able to bear corrosive. Same size for the inlet and outlet can install conveniently.
Impeller: Forward curve blade, all of them are designed backward curve with big flow, high efficiency... - Update: 2009-10-16