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ＧＢ11334-89《圆锥公差》和ＧＢ12360-90《圆锥配合》先后发布后,ＧＢ4458.4-84《机械制图 尺寸注法》第37条规定的锥度注法已不能满足在图样中标注圆锥尺寸和公差注法的要求。因此,全国技术制图标准化技术委员会在1992年提出立项制定《技术制图 圆锥尺寸和公差注法》国家标
GB11334-89 “taper tolerance” and GB12360-90 “cone with” has been released, GB4458.4-84 “Mechanical Drawing Note” the provisions of Article 37 of the taper injection method can not meet the requirements in the drawings marked cone size and tolerance Note the requirements. Therefore, the National Technical Drawing Standardization Technical Committee proposed in 1992 formulated the “technical drawings of cone size and tolerance injection” national standard