ISO 561:1974

01.080.30 73.120

Mechanical & plant engineering, Mining equipment, Equipment for processing of minerals Safety, Mining equipment, Equipment for processing of minerals Mechanical engineering foundations & materials, Technical drawing and graphical symbols, Graphical symbols for use on mechanical engineering and construction drawings, diagrams, plans, maps and in relevant technical product documentation Services & management, Technical drawing and graphical symbols, Graphical symbols for use on mechanical engineering and construction drawings, diagrams, plans, maps and in relevant technical product documentation