2021 year China issued GB standards list


	GB/T 51438-2021 Standard for design of shield tunnel engineering 盾构隧道工程设计标准
	GB/T 39743-2021 Plain bearings—Thermoplastic bushes—Dimensions and tolerance 滑动轴承热塑性塑料轴套尺寸与公差
	GB/T 34080.4-2021 Security specification of electronic government common platform based on cloud computing -- Part 4: Application security 基于云计算的电子政务公共平台安全规范第4部分：应用安全
	GB 55011-2021 Technical code for engineerings of prestressed concrete pavement 城市道路交通工程项目规范
	GB/T 20311-2021 Building components and building elements—Thermal resistance and thermal transmittance—Calculation methods 建筑构件和建筑单元热阻和传热系数计算方法
	GB/T 34077.2-2021 Management specification of electronic government common platform based on cloud computing -- Part 2: Services metrics and valuation 基于云计算的电子政务公共平台管理规范第2部分：服务度量计价
	GB/T 33770.6-2021 Information technology service—Outsourcing—Part 6:General requirements for service acquirer 信息技术服务外包第6部分：服务需求方通用要求
	GB 55010-2021 [Code for Heating engineering project] 供热工程项目规范
	GB/T 39933-2021 Rotational moulding—Test method for low temperature impact 滚塑成型低温冲击试验
	GB/T 51435-2021 Technical standard for rural solid waste collection transportation and treatment 农村生活垃圾收运和处理技术标准
	GB/T 51437-2021 Standard for design of wind/pv/stograge power plant 风光储联合发电站设计标准
	GB/T 40473.9-2021 Banking application system—Nonfunctional requirement—Part 9: Portability 银行业应用系统非功能需求第9部分：可移植性
	GB/T 39755.1-2021 Electronic records management capability system—Part 1:General requirements 电子文件管理能力体系第1部分：通用要求
	GB/T 40935-2021 Silage wrap film 青贮牧草膜
	GB 16994.1-2021 Safety requirements for port operation—Part 1: Oil & gas and chemical terminal 港口作业安全要求第1部分：油气化工码头
	GB/T 40362-2021 Powered toothbrushes—General requirements and test methods 电动牙刷一般要求和检测方法
	GB/T 40363-2021 Rigid polyurethane cellular materials used for refrigerated containers and refrigerated trailers 冷藏集装箱和冷藏保温车用硬质聚氨酯泡沫塑料
	GB/T 40953-2021 Digital rights management -- Encryption and encapsulation of copyright resources 数字版权保护版权资源加密与封装
	GB/T 5358-2021 Screwdriver for hexalobular socket screws 内六角花形螺钉旋具
	GB/T 40883-2021 Microalloyed steel forgings -- General specification 微合金钢锻件通用技术条件

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