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 | Piping rules | 
This document allows you to define the tube, elbow and connection to use, as well as the different rules for designing the piping.
Creation stages / Use:
Create a new document by clicking the icon, then select the
 icon, then select the  icon in Special tab.
 icon in Special tab.
Select tube, elbow and connection functions from drop-down lists.
Save and check in the document.
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 | Now, this document can be used by selecting it in Rules drop-down list from piping line command. |