ONORM M 7823 Teil.2-1982 Gas welding rods for Joint welding of unalloyed and low-alloyed steels; test to determine the suitability under manufacturing conditions
1982ONORM M 7823 Teil.2-1982 Gas welding rods for Joint welding of unalloyed and low-alloyed steels; test to determine the suitability under manufacturing conditions