• GB/T 39961-2021滚珠丝杠副 支承结构型式尺寸Ball screw assembly. Dimension of shaft-end type screw...2022-10-24
  • GB/T 39902-2021城市轨道交通中低速磁浮车辆悬浮控制系统技术条件Technical specification for the levitation cont...2022-10-24
  • GB/T 51422-2021建筑金属板围护系统检测鉴定及加固技术标准Technical standard for test,appraisal and strengtheni...2022-10-24
  • GB/T 17217-2021公共厕所卫生规范Hygienic specification for public toilet2022-10-24
  • GB/T 32224-2020热量表Heat meters2022-10-24
  • GB/T 39865-2021单轴晶光学晶体折射率测量方法Method for measuring refractive index of uniaxial optical crystal...2022-10-24
  • GB 51427-2021自动跟踪定位射流灭火系统技术标准Technical standard for auto tracking and targeting jet suppress...2022-10-24
  • GB/T 1406.3-2021灯头的型式和尺寸 第3部分:预聚焦式灯头Types and dimensions of lamp caps. Part 3: Prefocus cap...2022-10-24
  • GB 50014-2021室外排水设计标准Standard for design of outdoor wastewater engineering2022-10-24
  • GB/T 39827.1-2021塑料 用过的聚对苯二甲酸乙二醇酯(PET)瓶回收物 第1部分:命名系统和分类基础Plastics-Post-consume...2022-10-24
  • GB/T 18386.1-2021电动汽车能量消耗量和续驶里程试验方法 第1部分:轻型汽车Test methods for energy consumption and...2022-10-24
  • GB/T 39963-2021立井冻结法凿井井壁应用C80~C100混凝土技术规程Technical specification on C80~C100 concrete shaft ...2022-10-24
  • GB/T 39956.2-2021气动 电-气压力控制阀 第2部分:评定商务文件中应包含的主要特性的试验方法Pneumatic fluid power. ...2022-10-24
  • GB/T 39891-202152kV及以上断路器电气耐久性试验方法Electrical endurance testing for circuit-breakers above a r...2022-10-24
  • GB/T 10001.4-2021公共信息图形符号 第4部分:运动健身符号Public information graphical symbols. Part4:Symbols for...2022-10-24
  • GB/T 50526-2021公共广播系统工程技术标准Technical standard for public address system engineering2022-10-24
  • GB/T 32694-2021插电式混合动力电动乘用车 技术条件Plug-in hybrid electric passenger cars. Specifications...2022-10-24
  • GB 50151-2021泡沫灭火系统技术标准Technical standard for foam extinguishing systems2022-10-24
  • GB/T 1149.4-2021内燃机 活塞环 第4部分:质量要求Internal combustion engines. Piston rings. Part4:Quality requir...2022-10-24
  • GB/T 39747-2021举升式升降工作平台安全使用规程Code of practice for the safe use of supported elevating work p...2022-10-24
  • GB/T 39817-2021输送带 丙烷燃烧器中规模可燃性试验方法Conveyor belts. Propane burner mid-scale flammability te...2022-10-24
  • GB/T 5755-2021钢丝绳芯输送带 绳与包覆胶粘合试验 原始状态下和热老化后试验Steel cord conveyor belts. Cord-to-c...2022-10-24
  • GB/T 4022.1-2021卧轴矩台平面磨床 精度检验 第1部分:工作台面长度至1600mm的机床Surface grinding machines with ho...2022-10-24
  • GB/T 23314-2021领带Neckties2022-10-24