sepistus- või stantsimisvasar, mille löögienergia saavutatakse langevate osade kiirenemisega gravitatsiooni toimel (vrd liittoimevasar)
a class of forging hammer in which energy for forging is obtained by the mass and velocity of freely falling ram and the attached upper die; examples are the board hammer and air-lift hammer (compare: power-drop hammer)
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