) industrial damper fire & safety(tunnel dampers) tunnel ventilation damper fire & safety(marine dampers) marine & offshore dampers oil & gas dampers energy saving by- pass type vavs presure dependent vavs pressure independent vavs induction type vavs constant air volume – cav fan power vavs heavy duty...
by the gear reducer which power originate from a dc or ac-vf motor, it can also be driven by compound operation of two motors. ac-vf motor make the draw-works has a wider timing scope, the speed can be regulate smoothly between - hz. high transmission efficiency gear, small oscillation, low noise, long...
by the gear reducer which power originate from a dc or ac-vf motor, it can also be driven by compound operation of two motors. ac-vf motor make the draw-works has a wider timing scope, the speed can be regulate smoothly between - hz. high transmission efficiency gear, small oscillation, low noise, long...
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