Cross hatching: Cross Hatching is a method of creating specific patterns inside a specific boundary inorder to differentiate the boundaries. Cross hatching is mainly used in drawing representations and it is done following some standards like Angle of lines, width, Gap between lines etc. Types of Cross Hatching Pattern and their applications , representations : Iron or General use - Lines in 45' angle with equal gap in between them Steel - double lines in 45' with equal gap between each double line Brass/Copper - Lines in 45' with equal gap but alternatively breaking lines will be present Rubber/Plastic -Four lines and equal gap followed by four lines in 45' angle Refractory - One Breaking line between two lines in 45' with equal gaps Marble/Slate/Glass - Breaking lines with equal gap in 45' Lead -Wired pattern of lines Aluminum/Magnesium - pattern of lines with thin and breaking lines at each side Electrical winding -Similar to lead b