GB/T 第189页 - 在线标准查询

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GB/T 39679-2020.Integrated circuit card device for lifts.1范围GB/T 39679规定了电梯IC卡装置...

GB/T 39736-2020.Technical specification for the national park master plan.1范围GB/...

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GB/T 39704-2020.Determination of effective thermal conductivity for vacum insula...

GB/T 39712-2020.Sulphoaluminate cement for marine rapid construction.1范围GB/T 397...

GB/T 39701-2020.Limit and test method of ammonium ion content in fly ash.1范围GB/T...

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GB/T 39698-2020.Confirmation methods for delivering common Portland cement.1范围GB...

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GB/T 39584-2020.Programming interface specification of middleware for developing...

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