The layering Standard at GM is:
1 - Solid, Part
2 - Wireframe, Part
3 - Centerline, Part
4 - Theoretical
5 - Section
6 - Developmental
7 - Mate
8 - Criteria
253, 254 - Drawing Format & Annotation
Categories:
SOLID: Solids and sheet bodies required to define the part.
WIREFRAME: Lines and...