GB/T 第220页 - 在线标准查询

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GB/T 39245.1-2020 管法兰用金属齿形组合垫片第1部分:PN系列

GB/T 39245.1-2020.Grooved metal gaskets with covering layers for pipe flanges-Pa...

GB/T 39433-2020.Gas spring design calculation.1范围GB/T 39433规定了气弹簧的参数名称、符号、说明及单位,...

GB/T 1720-2020.Circle-drawing test of coating films.1范围GB/T 1720规定了以重叠圆滚线图形划透漆膜至...

GB/T 20892-2020.Praseodymium-neodymium metal.1范围GB/T 20892规定了镨钕金属的技术要求、试验方法、检验规则...

GB/T 2968-2020.Samarium metal.1范围GB/T 2968规定了金属钐的技术要求、试验方法、检验规则标志、包装、运输、贮存及质量证明书...

GB/T 1646-2020.2-Naphthol.1范围GB/T 1646规定了2-萘酚的要求、采样、试验方法、检验规则以及标志、标签、包装、运输和贮存。GB...

GB/T 1728-2020.Determination of drying time of coating and putty films.1范围GB/T 1...

GB/T 1732-2020.Determination of impact resistance of coating films.1范围GB/T 1732规...

GB/T 1741-2020.Test method for determining the resistance of paints film to mold...

GB/T 1731-2020.Determination of flexibility of coating and putty films.1范围GB/T 1...

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