This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
FMIB Section transversale du moule de fonte dont dont sic le fond ete remplace par une plaque percee d'une ouverture conique.jpeg Section transversale du moule de fonte dont dont sic le fond ete remplace par une plaque percee d'une ouverture conique Subject IceMeasurementEquipment and supplies SnowMeasurementEquipment and Supplies