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GB⼀T19851.20-2007标准有效期？失效期？多谢。
GB⼀T19851.20-2007标准有效期？失效期？多谢。
2025-03-15 08:53:45
推荐回答（1个）
回答1：
GB/T 19851.20-2007 中小学体育器材利场地 第20部分：跳绳。2007年6月1日起实施。现行，在国标委没有发布废止（该标准）公告前均属有效标准。
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