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- BAM - Federal Institute for Materials Research and Testing
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DIN 20379-1
Gesteinsbohren - Teil 1: Schlagbohrköpfe mit Innenkegel für Spühlbohren
Rock drilling - Part 1: Tapered bits for percussive flush drilling
DIN 20379-2
Gesteinsbohren - Teil 2: Schlagbohrköpfe mit Innengewinde für Spühlbohren
Rock drilling - Part 2: Bits with internal thread for percussive flush drilling
DIN 20401
Sägengewinde - Steigung 0,8 mm bis 2 mm - Maßangaben
Buttress threads - 0,8 mm to 2 mm pitch - Dimensions
DIN 20449
Weichen und Gleisverbindungen für den Bergbau unter Tage; Übersicht, Begriffe
Points and crossovers for rail haulage roads in mines; standard types, terminology
DIN 20450
Einfache Grubenweichen; Halbmesser 20 m, Neigung 1 : 5; Geometrische Maße
Simple underground track points; 20 m radius, 1 : 5 inclination; geometric dimensions
DIN 20452-1
Simple points for underground tracks with loose heel switch; 20 m radius, 1 : 5 inclination, 600 mm gauge; compilation
DIN 20452-2
Simple points for underground tracks with spring switch blade; 20 m radius, 1 : 5 inclination, 600 mm gauge; compilation
DIN 20453-1
Switches for simple underground track points with loose heel switch; 20 m radius, 1 : 5 inclination, 600 mm gauge
DIN 20453-2
Switches for simple underground track points with spring switch blade; 20 m radius, 1 : 5 inclination, 600 mm gauge
DIN 20454
Herzstücke für einfache Grubenweichen; Halbmesser 20 m, Neigung 1 : 5, Spurweite 600 mm
Crossings for simple underground track points; 20 m radius, 1 : 5 inclination, 600 mm gauge