Detailed Drawings > Annotating the Drawing > Working with Symbols > Defining Symbols > Symbol Types > About Symbol Types
  
About Symbol Types
While you can use either standard supplied symbols, or customize your own, the drawing symbols are characterized in the following manner:
Simple: Each instance, or placement, of the symbol is identical. The graphic and textual content remain unchanged.
Generic: Each instance contains familiar geometry or textual content, yet variations can exist. The graphic and textual content are chosen from a common group of symbol attributes.
Surface Finish: Generic surface finish symbol that consists of building blocks, or groups.
Weld: Generic system symbols according to the ANSI or ISO standards for creating welding, brazing and examination symbols in drawings.