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4.5.2.2 Unit
Length dimension is expressed in millimeters without a necessity to specify a unit
o
symbol ‘mm’. For angular dimension, it is expressed in degree with a symbol ‘ ’
places behind the number (and if necessary minutes and seconds may be used
together).
Figure 4.15 : No need to specify an unit in dimensioning
4.5.2.3 Narrow Space Situation
If there is not enough space for numbers or arrows, the dimension should be put
outside of the extension lines.
Figure 4.16 : Dimension in narrow space
