Developer's DescriptionBy CADToolsOnlineGenerate piping and instrumentation diagrams in AutoCAD and AutoCAD LT.This library contains 335 P&ID symbols and 78 custom line types conforming to ANSI/ISA Standard 5.1-2009. ANSI drawing borders included. Symbols are drawn to work with a grid and snap system. Most symbols are drawn as "dynamic blocks" and can be modified after inserted. Most symbols contain built in attributes for data extraction purposes.