25怎样编写产品标准?产品标准要素一般按表1规定编排。表1系常用的编排示例,可根据产品特点和使用要求增减、合并或重新排序。26企业在什么情况应制定企业标准?已有国家标准、行业标准和地方标准的产品,原则上企业不必再制定企业标准。一般只要贯彻上级标准即可。在下列情况下, 25 How to write product standards? Product standard elements generally arranged in accordance with the provisions of Table 1. Table 1 is a common example of choreography, according to product features and requirements increase, decrease, merge or reorder. 26 In what circumstances should enterprises develop enterprise standards? There are national standards, industry standards and local standards of products, in principle, companies do not have to develop business standards. As long as the general standard can be implemented. In the following circumstances,