hank
harass
harbour
hard
hard-burnt
hard-chine
hardcopy
hard-drawn
hardenability
hardener
  hardening
hard-ening-and-annealing
harder
hard-grain
hard-landing
hardness
hardness-testing
hard-nosed
hardometer
hard-over
hardover

    hardening furnace

     печь для закалки

     закалочная печь