Points to be noted when marking geometric tolerances on drawings
2024-09-14 12:01:00
The national standards for shape and position tolerance series have so far included (1) GB1182—80 “Shape and position tolerance codes and their injection methods†(2) GB1183—80 “Position and position tolerance terms and definitions†(3) G81184—80 "Provisions on the tolerance of shape and position tolerances" (4) GB4249-84 "Tolerance Principles" (5) GB13319-91 "Position and Position Tolerance Position Tolerance"
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