Insulating Material Small 320×213 Medium 640×426 Large 1024×682 Download Tiff Original 2400×1598 | (1.0 MB) Description Mechanical drawing convention for identifying insulating material. Using conventionalized patterns to identify materials is called section lining. Keywords drafting, materials, mechanical drawing, section lining Galleries Mechanical Drawing Conventions Source: Kenison, Ervin Mechanical Drawing (Chicago, IL: American School of Correspondence, 1916)
