GB/T 12817-2021.General technical specification for railway passenger car.1范围GB/T 12817规定了标准轨距铁路客车的术语和定义、基本要求、材料要求、各部结...
GB/T 39752-2021.Safety requirements and test specifications of electric vehicle conductive supply equipment.1范围GB/T 39752规定了电动汽车供电设备(以下简称“供电设...
GB/T 20385.1-2021.Textiles-Determination of organotin compounds-Part 1 : Derivatisation method using GC-MS.1范围GB/T 20385.1规定了采用衍生化气相色谱-质谱法(GC-MS)测定...
GB/T 17901.3-2021.Information technology-Security techniques-Key management-Part 3 :Mechanisms using asymmetric techniques.1范围GB/T 17901的本部分定义了基于非对称密码技...
GB/T 39786-2021.Information security technology-Baseline for information system cryptography application.1范围GB/T 39786规定了信息系统第一级到第四级的密码应用的基...
GB/T 39741.1-2021.Plain bearings-Tolerances-Part 1: Fits.1范围GB/T 39741.1规定了通用机械中轴承平均相对间隙ψm为0.56%o~3.15%o的金属滑动轴承的配合体系,其...
GB/T 39741.2-2021.Plain bearings-Tolerances-Part 2 :Tolerances on geometrical characteristics and surface roughness for shafts and thrust collars.1范围GB/T 39741的本部分规定了...
GB/T 12736-2021.Conveyor belts一Determination of strength of mechanical fastenings-Static test method.1范围GB/T 12736规定了输送带机械接头强度的静态试验方法。该...
GB/T 39831-2021.Hydraulic fluid power- Four-port modular stack valves and four-port directionalcontrol valves, sizes 02，03，05，07, 08 and 10-Clamping dimensions。1范围GB/T 3...
GB/T 39830-2021.Code for seismic design of steel static storage systems.1范围GB/T 39830规定了地震作用下立体仓库钢结构货架的设计规范,其内容包括一般规定...
