Insert 
Dimension Welding Section
The Welding Section command enables you to draw the section of a weld.
Because this representation of the weld requires the least parameters, it is generally drawn first. However, if you have already defined the weld parameters for a welding symbol or have already drawn the bead with the Welding Bead command, you can use the Data from Welding selector in the selection list to recall the data from the existing weld representations.
The selection list changes according to the current welding type selected from the Basic Symbol drop-down list.
Double-click an existing welding section entity to re-enter the command in order to modify its parameters.