... price,fine quality,satisfying service CE certificate Portable blower, Portable ventilator(portable blower,air blower,exhaust fan) Size:8" 10"12" 14 ... shutter: 7pcs dia-cast aluminum alloy,fan body and cover:galvanized steel,handle: die-cast plastics,cable length:3m ... ship building or welding, laboratory ,warehouse to ventilate waste air,harmful gas,dust ect. Model specification (mm)voltage(V~) ...