GB/T 40077-2021.Reciprocating positive displacement pumps and pump units-Technical requirements. 1范围...
GB/T 39969-2021 建筑用通风百叶窗通风及防雨性能检测方法
GB/T 39969-2021.Test method of ventilation and rain resistance performance for ventilation louvers o...
GB/T 26077-2021 金属材料 疲劳试验 轴向应变控制方法
GB/T 26077-2021.Metallic materials-Fatigue testing一Axial-strain-controlled method. 1范围 GB/T 26077规定了...
GB/T 24596-2021 球墨铸铁管和管件 聚氨酯涂层
GB/T 24596-2021.Ductile iron pipes and fittings-Polyurethane coatings. 1范围 GB/T 24596规定了球墨铸铁管和管件内外表面...
GB/T 9790-2021 金属材料 金属及其他无机覆盖层的维氏和努氏显微硬度试验
GB/T 9790-2021.Metallic materials-Vickers and Knoop microhardness tests of metallic and other inorga...
GB/T 3480.3-2021 直齿轮和斜齿轮承载能力计算第3部分:轮齿弯曲强度计算
GB/T 3480.3-2021.Calculation of load capacity of spur and helical gears-Part 3 :Calculation of tooth...
GB/T 39982-2021 水润滑径向滑动轴承 承载能力测试方法
GB/T 39982-2021.Water lubricated journal bearings-Test methods of load carrying capacity. 1范围 GB/T 3...
GB/T 40016-2021 基础零部件通用元数据
GB/T 40016-2021.General metadata for fundamental part and component. 1范围 GB/T 40016规定了基础零部件的通用元数据组成及...
GB/T 40103-2021 太阳能热发电站接入电力系统技术规定
GB/T 40103-2021.Technical requirement of connecting to power system for solar thermal power station....
GB/T 2424.6-2021 环境试验 第3部分:支持文件及导则温度/湿度试验箱性能确认
GB/T 2424.6-2021.Environmental testing-Part 3: Supporting documentation and guidance-Confirmation of...
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