รายละเอียดสินค้าModel Number CTF-30 (300 mm.12'')Electric Current Type A.C. Single PhaseBlade Materia aluminum alloyVoltage 220 VPower 500/550 WFrequency 50/60 HZAir Volume 65/77 m³/minSpeed 2800/3300 r/minNoise 69 dB(A)Fan Industrial fanPortable fan draught fanDetailed Product Description1)saving energy2)strong wind power3)convenient to move4)light weight features1)saving energy2)strong wind power3)convenient to move4)make low noise and light weight due to die-casting aluminum alloy.5)with good capacity, the reasonable structure and the strong suction.Application1)working sewer and cable2)blowing bad gas when welding shipbuilding,canning,bridge.3)exhaust for fire fighting,piping construction and in other violent working situation for ventilation.