A conventional cross hatching symbol for Babbitt, metal composed of tin and copper.
The conventional material symbol using cross hatching technique for brass.
A conventional cross hatching material symbol for cast iron.
A mechanical drawing cross hatching symbol for cast steel.
Conventional cross hatching mechanical drawing of copper.
A homemade section liner device made by slipping a wooden block to hold the triangle to make cross hatching…
A conventional face hardened steel, commonly used in military armory, cross hatching mechanical drawing…
Conventional cross hatching for glass for mechanical drawing.
Cross hatching conventional symbol for insulating material used in mechanical drawing.
A conventional leather cross hatching mechanical drawing symbol.
Section liners are used to make a series of diagonal lines to create cross hatching.
A conventional liquid symbol in cross hatching used in mechanical drawing.
"The illustration gives conventions for a number of different materials. Those in the first line are…
A wrought iron conventional cross hatching symbol.
The conventional cross hatching mechanical drawing symbol for wrought steel.