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DIN 21057-11
Pipe classes for process plants - Part 11: Technical delivery conditions for pipe components of austenitic stainless steels of material group 8.1
NA 041-02-50 AA
Fundamentals (Mirror committee CEN/TC 156 plus WG 1, 8, 20, 23, 24, 25 und WG 26)
prEN ISO 21904-4 rev
Health and safety in welding and allied processes - Equipment for capture and separation of welding fume - Part 4: Determination of the minimum air volume flow rate of capture devices
DIN EN ISO 21904-4 rev
Health and safety in welding and allied processes - Equipment for capture and separation of welding fume - Part 4: Determination of the minimum air volume flow rate of capture devices
