Unit 5 Understanding Prints 59 Copyright Goodheart-Willcox Co., Inc. May not be reproduced or posted to a publicly accessible website. Section Lining Section lining, sometimes called crosshatching, represents the type of exposed cut surface of a sec- tion. The American National Standards Institute (ANSI) has recommended the symbols for section lining shown in Figure 5-18. The symbols depict the different types of material specifications. General- purpose section lining (cast iron) is usually used on drawings when exact material specifications are located elsewhere on the print. Figure 5-18. Standard code symbols exist for various materials in a section. Cast iron and general purpose Rubber and plastic Steel Concrete Aluminum and magnesium Wood (end grain) Wood with grain White metal, zinc, and lead Brass, bronze, and copper Electrical windings Figure 5-16. A cutting-plane line shows the point from which a section is removed from the part. Figure 5-17. Any of three forms of cutting-plane lines can be found on a drawing. A—Cutting-plane line with long dashes and pairs of short dashes. B—Cutting-plane line with equal length short dashes. C—Cutting-plane line with only the ends and arrowheads. A C B