holing block,nog,timber chock /ENERGY-MINING/
[DE] Holzpfeiler
[EN] holing block; nog; timber chock
[FR] bois de calage; quadrillage de traverses
nog,nog bar,runner bar /INDUSTRY,INDUSTRY-METAL/
[DE] Schleifeisen; Schleifnocke
[EN] nog; nog bar; runner bar
[FR] barreau de ferrasse