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DIN 21614
Auxiliary ventilation for mining - Flanged sheet steel reducers
Edition
2009-10
DIN 21615
Auxiliary ventilation for mining - Sheet steel reducers with flange and shoulder
Edition
2009-10
DIN 21625
Fans with electric motor drive intended for use in potentially explosive atmospheres in coal mines
Edition
2010-07
DIN 21626
Fans with hybrid (electric/pneumatic) motor drive intended for use in potentially explosive atmospheres in coal mines
Edition
2011-02
DIN 21631
Air regulating systems for mining - Wing air doors for travelling tracks - One-wing type air doors without pressure reduction
Edition
2011-03
DIN 21632
Air regulating systems for mining - Wing air doors for haulage tracks - One-wing type air doors without pressure reduction
Edition
2011-03
DIN 21633
Air regulating systems for mining - Wing air doors for haulage tracks - Double-wing type doors without pressure reduction
Edition
2011-03
DIN 21634
Air regulation systems for mining - Swinging roadway air doors for haulage tracks
Edition
2011-03
DIN 21635
Air regulation systems in mining - Air locks - Building and operation
Edition
2016-09
DIN 21636
Air regulation systems for mining - Belt-conveyors-way air locks - Dimensions, identifications, requirements and testing
Edition
2016-09
