A circle at the junction of the reference line and arrow in a welding symbol indicates that the weld should be made on the arrow side of the joint. If there is no circle and the arrow is pointing to the joint, it usually indicates that the weld should be made on the other side, which is referred to as the "other side" of the joint. This is part of the standardized symbols used in welding to provide clear instructions on how and where to apply welds on fabricated components.
A circle at the junction of the reference line and arrow indicates that the weld should be made__.
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