molding sand preparation, sand preparation
vormimaterjalide ettevalmistus (doseerimine, segamine, laagerdamine, kobestamine) vormi- või kärnisegude valmistamisel (vt vormisegu, vormisegu koostamine), preparation of molding sand in sand casting production, including burdening, sand mixing, and used sand treatment (see: molding sand, burdening, sand mixing, used sand treatment)
