KS A ISO 128-22:2014 Technical drawings — General principles of presentation — Part 22: Basic conventions and applications for leader lines and reference lines
2014KS A ISO 128-22:2014 Technical drawings — General principles of presentation — Part 22: Basic conventions and applications for leader lines and reference lines
2001KS A ISO 128-22:2001 Technical drawings-General principles of presentation-Part 22:Basic conventions and applications for leader lines and reference lines