In metric drawings for weldments, a millimeter dimension with a whole number and a decimal fraction is shown with a zero following the decimal fraction.

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In metric drawings, a millimeter dimension with a whole number and a decimal fraction is typically shown without a zero following the decimal fraction unless the precision specifically requires it (e.g., 15.5 mm, not 15.50 mm).

In Metric Drawings for Weldments, a Millimeter Dimension with a Whole