Mechanical Drawing Cross Hatching of Material Symbols

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“The illustration gives conventions for a number of different materials. Those in the first line are accepted by practically all who use conventional cross—hatching... Those given are part of the codes of government standards of the Bureau of Steam Engineering and the Bureau of Construction U.S.N.” —French, 1911


French, Thomas E A Manual of Engineering Drawing for Students and Draftsmen (New York, NY: McGraw-Hill, 1911)


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