ISO 13567-2:2017 Technical product documentation - Organization and naming of layers for CAD - Part 2: Concepts, format and codes used in construction documentation
2017ISO 13567-2:2017 Technical product documentation - Organization and naming of layers for CAD - Part 2: Concepts, format and codes used in construction documentation
1998ISO 13567-2:1998 Technical product documentation - Organization and naming of layers for CAD - Part 2: Concepts, format and codes used in construction documentation