消极的压力抽气扇那个位置/空白粉丝

negative pressure exhaust fan / vacuum fan 1The outline border adopts advanced automatic process, more accuracy, material adopt zinc coat and zinc plate. 2The aluminum metal alloy of the high strength hub, adopts aviation aluminum magnesium metal alloy, light weight, high strength, good tensile. 3Strap adjust automatically, no need manual adjustment during lifetime. 4Shutter adopt special push-pull, open-close device, ensure shutter totally open and close, windproof, rainproof and dustproof. 5Newly punch forming fan blade, reasonable angel and reach the max. air flow, mini. Noise. 6Double bracing (E style) belt transporter, Europe industry motor standard. 7Safety net easily tears down. 8 strictly quality test process: noise test, vibration test .concentric performance test, fan blade turning speed test, input air teat and vehicle efficiency test. 9Special motor hole wind shield, avoid losing wind to reach the best wind suck effect. 10belt type B,thicker and durable ,double life time Spec.The dia. Of blademmThe Speed of blader/minPowerkwVoltageVNoiseVolumedbThe capacity of windm3/hFiguremmWeightkgJFD-125E12504381.1380≤64460001380*1380*45083JFD-125HE12504381.1380≤64438001380*1380*41080JFD-100E10005600.75380≤64350001100*1100*45074JFD-100HE10005600.75380≤64350001100*1100*41065