分析了影响板料冷冲压件尺寸误差的工艺因素，提出了冷冲压件的尺寸经济精度。
Technical factor of influencing size tolerance of cold stamping for sheeting material was analyzed and economic tolerance of cold stamping was mentioned.
此法简单经济，对表的精度和寿命均无任何损害。
This method is simple and economical, and the accuracy of table no damage to life.
零件能按经济加工精度制造，配合精度高，但增加了测量分组工作。
Parts can be manufactured according to the accuracy of economic processing, with high precision, but increased the measurement of grouping.
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