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DIN 21531-2
Arch supports; arches B 21,7 to B 63
Edition
1990-07
DIN 21557
Mine support; yield valves for powered support; identification code
Edition
1987-02
DIN 21603
Auxiliary ventilation for mining - Sheet steel ventilation ducting with collars and loose flanges
Edition
2009-10
DIN 21605
Auxiliary ventilation for mining - Flexible plastic ventilation ducts for exhaust and forced ventilation - Spiral ventilation ducts
Edition
2010-07
DIN 21606
Auxiliary ventilation for mining - Flexible plastic ventilation ducts for forced ventilation - Flat ventilation ducts
Edition
2010-07
DIN 21610
Auxiliary ventilation for mining - Flexible plastic air ducts - Requirements and test methods
Edition
2010-07
DIN 21612
Auxiliary ventilation for mining - Cladding material for flexible airducts - Requirements, testing
Edition
2010-07
DIN 21613
Auxiliary ventilation for mining - Steel sheet connectors with flange and shoulder
Edition
2009-10
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