How does a slot weld differ from a plug weld?

plug or slot weld symbol   Dan plug weld vs slot weld

The symbol decodes to: far side is a slot or plug weld and near side as a bevel weld I doubt that whomever created it is familiar

Plug or slot weld symbol is a rectangle on the weld arrow Spot or projection is a circle, either tangent to the weld arrow or centered on The image above is a Welding Symbol SlotPlug Weld Spot Weld Seam Weld Fillet Weld

lucky new year slot soldi veri Plug or slot weld symbol is a rectangle on the weld arrow Spot or projection is a circle, either tangent to the weld arrow or centered on The number of plugs or slots is given in parentheses above or below the weld symbol The arrow-side and other-side designations indicate which piece contains