GB/T 39622-2020.Gravity dredging grab. 1范围 GB/T 39622规定了挖泥船重力抓斗的分类、结构、尺寸和型号、技术要求、质量检查、检验规则,以及标志、包装、运...

GB/T 39574-2020.Technical requirements for content decency of smart terminal. 1范围 GB/T 39574规定了针对智能终...

GB/T 39479-2020.Prediction method for radiated noise of offshore platform. 1范围 GB/T 39479规定了海洋平台辐射噪声...

GB/T 39559.1-2020.Specifications for operational monitoring of urban rail transit facilities-Part 1 ...

GB/T 39559.2-2020.Specifications for operational monitoring of urban rail transit facilities-Part 2 ...

GB/T 39559.3-2020.Specifications for operational monitoring of urban rail transit facilities-Part 3:...

GB/T 39559.4-2020.Specifications for operational monitoring of urban rail transit facilities-Part 4:...

GB/T 39670-2020.Determination of nitrofuran metabolites in pet feeds一Liquid chromatography-tandem ma...

GB/T 24635.1-2020.Geometrical product specifications (GPS)-Coordinate measuring machines (CMM) :Tech...

GB/T 15092.102-2020.Switches for appliances-Part 1-2: Requirements for electronic switches. 1范围 GB/T...