INTERNATIONAL STANDARD
Technical product documentation -
Organization and naming of layers
for CAD -
Part 2:
Concepts, format and codes used in
construction documentation
Contact: Eason Wang
Phone: +86-13751010017
E-mail: info@iec-equipment.com
Add: 1F Junfeng Building, Gongle, Xixiang, Baoan District, Shenzhen, Guangdong, China
Eason Wang