WAir classifier
WBall mill
WBlowout preventer
WBowl feeder
WBuell dryer
WCalender
WCargo net
WCase sealer
WCoiled tubing
WCoiled tubing umbilical
WConcrete mixer
WDerrick
WFixture (tool)
WFour-slide
WHorn analyzer
WHydromill trench cutter
WImpact mill
WIndustrial dryer
WMezzanine
WMultiple-effect evaporator
WOptical comparator
WPalletizer
WPresence sensing device
WRecovery boiler
WRecuperator
WRolling bed dryer
WRun-around coil
WScrew conveyor
WShadow board
WThermal wheel
WTool
WTrickling filter
WTurret lathe
WUrsa Major (excavator)
WVacuum truck
WVapor–liquid separator
WVariable rate feeder
WWheel washing system
WWire rope spooling technology