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国家标准化管理委员会网站提供部分企业标准查询。
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推荐性国家标准、行业标准、地方标准、团体标准、企业标准的技术要求不得低于强制性国家标准的相关技术要求。
口罩包装上的注册编码是“豫械注准20172640107”的医用外科口罩是真口罩。
按照GB/T32610-2016标准生产的口罩，可以防范新冠病毒。
Fill in the blanks with the expressions given below. Change the form where necessary. Each expression can be use only once.Keep up with, set up, fire off, take the lead,add to , stand out , in large part,visit with, account for, at a disadvantageI ____ a letter of complaint to the manager of the store as soon as I found they had sold me a pair of mismatched shoes.
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