Words to Describe conveyors

How conveyors often is described ("________ conveyors")

• longitudinal
• closed
• pneumatic
• principal
• simple
• chief
• chain
• longer
• automatic
• activated
• auger
• type
• inch
• parallel
• masse
• mechanized
• vertical
• covered
• flat
• primary
• roller
• live
• speed
• powered
• conventional
• suitable
• ordinary
• main
• pedestrian
• automated
• mobile
• underground
• roll
• auxiliary
• mechanical
• floor
• short
• fixed
• free
• inclined
• mere
• enclosed
• slat
• gravity
• portable
• endless
• line
• spiral
• driven
• oscillating
• long
• separate
• horizontal
• movable
• duty
• current
• powerful
• overhead
• continuous
• screw
• efficient
• special
• hydraulic
• flight
• flexible
• standard
• vibratory
• neutral
• multiple
• magnetic
• electric