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GB standards are the China national standards; Prefix code GB are Mandatory standards, GB/T are Recommended standards; All products or service must be compliance with GB standards; If you want to export products or services to huge Chinese market, need ensure they are meet the requirements of GB china national standards; We provide Chinese GB standards and English version GB standards Lookup, Translate, Download, Imported Commodity GB standards Testing and Compliance review services. |
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 42936-2023 |
Facilities Management ProCess Management Guide 设施管理 过程管理指南 |
China National Standards Ces |
 English PDF |
| GB/T 42874-2023 |
Urban public facilities serviCes, urban furniture, system construction implementation evaluation specifications 城市公共设施服务 城市家具 系统建设实施评价规范 |
China National Standards Ces |
English PDF |
| GB/T 30523-2023 |
Core metadata of scientific and technological resourCes 科技资源核心元数据 |
China National Standards Ces |
English PDF |
| GB/T 42865.1-2023 |
Water quota for service industry Part 1: Swimming plaCes 服务业用水定额 第1部分：游泳场所 |
China National Standards Ces |
English PDF |
| GB/T 42928-2023 |
Code of Good Practice for Reverse Logistics ServiCes 逆向物流服务良好行为规范 |
China National Standards Ces |
English PDF |
| GB/T 16865-2023 |
Specimens and methods for tensile testing of deformed aluminum, magnesium and their alloy proCessed products 变形铝、镁及其合金加工制品拉伸试验用试样及方法 |
China National Standards Ces |
English PDF |
| GB/T 8180-2023 |
Packaging, marking, transportation and storage of titanium and titanium alloy proCessed products 钛及钛合金加工产品的包装、标志、运输和贮存 |
China National Standards Ces |
English PDF |
| GB/T 3620.2-2023 |
Allowable deviations in chemical composition of titanium and titanium alloy proCessed products 钛及钛合金加工产品化学成分允许偏差 |
China National Standards Ces |
English PDF |
| GB/T 29327-2023 |
Technical requirements for 1000kV reactor protection deviCes 1000kV电抗器保护装置技术要求 |
China National Standards Ces |
English PDF |
| GB/T 42818.1-2023 |
Cognitive AcCessibility Part 1: General Guidelines 认知无障碍 第1部分：一般指南 |
China National Standards Ces |
English PDF |
| GB/T 34033.3-2023 |
Ships and Offshore Technology Risk Assessment of Ship Antifouling Systems Part 3: Methods for Human Health Risk Assessment of Antifouling Active SubstanCes During the Application and Removal of Marine Antifouling Primers 船舶与海上技术 船舶防污底系统风险评估 第3部分：船用防污底涂料应用和去除过程中防污活性物质的人体健康风险评估方法 |
China National Standards Ces |
English PDF |
| GB/T 20818.15-2023 |
Industrial proCess measurement and control - Data structures and elements in process equipment catalogs - Part 15: List of properties (LOPs) for electronic data exchange of level measuring equipment 工业过程测量和控制 过程设备目录中的数据结构和元素 第15部分：物位测量设备电子数据交换用属性列表(LOPs) |
China National Standards Ces |
English PDF |
| GB/T 20818.14-2023 |
Industrial proCess measurement and control - Data structures and elements in process equipment catalogs - Part 14: List of properties (LOP) for electronic data exchange of temperature measuring equipment 工业过程测量和控制 过程设备目录中的数据结构和元素 第14部分：温度测量设备电子数据交换用属性列表(LOP) |
China National Standards Ces |
English PDF |
| GB/T 20818.13-2023 |
Industrial proCess measurement and control. Data structures and elements in process equipment catalogs. Part 13: List of properties (LOP) for electronic data exchange of pressure measuring equipment. 工业过程测量和控制 过程设备目录中的数据结构和元素 第13部分：压力测量设备电子数据交换用属性列表（LOP） |
China National Standards Ces |
English PDF |
| GB/T 29344-2023 |
Technical Specifications for Harvesting and ProCessing of Ganoderma Spore Powder 灵芝孢子粉采收及加工技术规范 |
China National Standards Ces |
English PDF |
| GB/T 42952.1-2023 |
Thermoplastic pipes for fluid conveyance - Dimensions and toleranCes - Part 1: Metric series 流体输送用热塑性塑料管材 尺寸和公差 第1部分：公制系列 |
China National Standards Ces |
English PDF |
| GB 21350-2023 |
Copper and Copper Alloy ProCessed Materials Energy Consumption Quota per Unit Product 铜及铜合金加工材单位产品能源消耗限额 |
China National Standards Ces |
English PDF |
| GB 16914-2023 |
Safety technical requirements for gas burning applianCes 燃气燃烧器具安全技术条件 |
China National Standards Ces |
English PDF |
| GB/T 25283-2023 |
Specifications for Comprehensive Exploration and Evaluation of Mineral ResourCes 矿产资源综合勘查评价规范 |
China National Standards Ces |
English PDF |
| GB/T 41638.3-2023 |
Plastics - Carbon and environmental footprints of bio-based plastics - Part 3: Requirements and guidelines for the quantification of proCess carbon footprints 塑料 生物基塑料的碳足迹和环境足迹 第3部分：过程碳足迹 量化要求与准则 |
China National Standards Ces |
English PDF |
| GB/T 42546-2023 |
Resource utilization of agricultural waste Recycling and utilization of agricultural product proCessing waste 农业废弃物资源化利用 农产品加工废弃物再生利用 |
China National Standards Ces |
English PDF |
| GB/T 42679-2023 |
Resource utilization of agricultural waste Comprehensive utilization of biomass resourCes 农业废弃物资源化利用 生物质资源综合利用 |
China National Standards Ces |
English PDF |
| GB/T 42681-2023 |
Circular economy performance evaluation Utilization of agricultural waste resourCes 循环经济绩效评价 农业废弃物资源化利用 |
China National Standards Ces |
English PDF |
| GB/T 42803-2023 |
Baby and child products General technical requirements for acCessories for mother and child room 婴童用品 母婴室配套用品通用技术要求 |
China National Standards Ces |
English PDF |
| GB/T 4798.4-2023 |
Classification of environmental conditions Classification of environmental parameter groups and their severity levels Part 4: Stationary use in plaCes without weather protection 环境条件分类 环境参数组分类及其严酷程度分级 第4部分：无气候防护场所固定使用 |
China National Standards Ces |
English PDF |
| GB/T 42574-2023 |
Information security technology - Implementation guidelines for notification and consent in personal information proCessing 信息安全技术 个人信息处理中告知和同意的实施指南 |
China National Standards Ces |
English PDF |
| GB/T 4798.3-2023 |
Classification of environmental conditions Classification of environmental parameter groups and their severity classification Part 3: Stationary use in plaCes with weather protection 环境条件分类 环境参数组分类及其严酷程度分级 第3部分：有气候防护场所固定使用 |
China National Standards Ces |
English PDF |
| GB/T 42688-2023 |
Requirements for Discharge and Disposal of Residues of Toxic Liquid SubstanCes from Ships 船舶有毒液体物质残余物排放处理要求 |
China National Standards Ces |
English PDF |
| GB/T 42723-2023 |
International trade business proCess specification electronic international road freight transport consignment note 国际贸易业务流程规范 电子国际公路货物运输托运单 |
China National Standards Ces |
English PDF |
| GB/T 42738-2023 |
International trade business proCess specification Transboundary movement of waste 国际贸易业务流程规范 废弃物越境转移 |
China National Standards Ces |
English PDF |
| GB/T 42725-2023 |
International Trade Business ProCess Specification Verified Gross Mass of Loaded Containers 国际贸易业务流程规范 经核实的载货集装箱总质量 |
China National Standards Ces |
English PDF |
| GB/T 42691.2-2023 |
Road vehicles - Local area interconnect network (LIN) - Part 2: Transport layer protocols and network layer serviCes 道路车辆 局域互联网络（LIN） 第2部分：传输层协议和网络层服务 |
China National Standards Ces |
English PDF |
| GB/T 19314.10-2023 |
Small boats - Hull structure and member dimensions - Part 10: Sail loads and sail acCessories for sailing yachts 小艇 艇体结构和构件尺寸 第10部分：帆艇帆装载荷及帆装附件 |
China National Standards Ces |
English PDF |
| GB/T 42619-2023 |
Additive manufacturing proCess parameter library construction specification 增材制造 工艺参数库构建规范 |
China National Standards Ces |
English PDF |
| GB/T 42621-2023 |
Additive manufacturing Directed energy deposition-milling composite additive manufacturing proCess specification 增材制造 定向能量沉积-铣削复合增材制造工艺规范 |
China National Standards Ces |
English PDF |
| GB/T 42703-2023 |
Bicycles - Horn deviCes - Technical specifications and test methods 自行车 鸣号装置 技术规范和试验方法 |
China National Standards Ces |
English PDF |
| GB/T 31887.5-2023 |
Bicycles - Lighting and retro-reflective deviCes - Part 5: Non-generator powered lighting systems for bicycles 自行车 照明和回复反射装置 第5部分：自行车非发电机供电的照明系统 |
China National Standards Ces |
English PDF |
| GB/T 31887.4-2023 |
Bicycles - Lighting and retro-reflective deviCes - Part 4: Lighting systems powered by bicycle generators 自行车 照明和回复反射装置 第4部分：自行车发电机供电的照明系统 |
China National Standards Ces |
English PDF |
| GB/T 10067.417-2023 |
Basic specifications for electrothermal and electromagnetic treatment deviCes Part 417: Devices for growing silicon carbide single crystals 电热和电磁处理装置基本技术条件 第417部分：碳化硅单晶生长装置 |
China National Standards Ces |
English PDF |
| GB/T 42750-2023 |
Optical radiation safety measurement method for wearable deviCes 可穿戴设备的光辐射安全测量方法 |
China National Standards Ces |
English PDF |
| GB/T 37036.9-2023 |
Information technology - Biometric identification of mobile deviCes - Part 9: Test methods 信息技术 移动设备生物特征识别 第9部分：测试方法 |
China National Standards Ces |
English PDF |
| GB/T 7922-2023 |
Method for measuring the color of lighting sourCes 照明光源颜色的测量方法 |
China National Standards Ces |
English PDF |
| GB/T 42756.4-2023 |
Card and identification security deviCes - Contactless proximity objects - Part 4: Transmission protocols 卡及身份识别安全设备 无触点接近式对象 第4部分：传输协议 |
China National Standards Ces |
English PDF |
| GB/T 42756.3-2023 |
Card and identification security deviCes - Contactless proximity objects - Part 3: Initialization and anti-collision 卡及身份识别安全设备 无触点接近式对象 第3部分：初始化和防冲突 |
China National Standards Ces |
English PDF |
| GB/T 42756.2-2023 |
Card and identification security deviCes - Contactless proximity objects - Part 2: Radio frequency power and signal interfaces 卡及身份识别安全设备 无触点接近式对象 第2部分：射频功率和信号接口 |
China National Standards Ces |
English PDF |
| GB/T 42756.1-2023 |
Card and identification security deviCes - Contactless proximity objects - Part 1: Physical characteristics 卡及身份识别安全设备 无触点接近式对象 第1部分:物理特性 |
China National Standards Ces |
English PDF |
| GB/T 5003-2023 |
Method for determination of chemical corrosion resistance of glazed surfaCes of household ceramics 日用陶瓷器釉面耐化学腐蚀性的测定方法 |
China National Standards Ces |
English PDF |
| GB/T 42567.3-2023 |
Reference conditions and procedures for testing transmitters for industrial proCess measurement Part 3: Specific procedures for temperature transmitters 工业过程测量变送器试验的参比条件和程序 第3部分：温度变送器的特定程序 |
China National Standards Ces |
English PDF |
| GB/T 42567.2-2023 |
Reference conditions and procedures for testing transmitters for industrial proCess measurement Part 2: Specific procedures for pressure transmitters 工业过程测量变送器试验的参比条件和程序 第2部分：压力变送器的特定程序 |
China National Standards Ces |
English PDF |
| GB/T 42567.1-2023 |
Reference conditions and procedures for testing transmitters for industrial proCess measurement Part 1: General procedures for all types of transmitters 工业过程测量变送器试验的参比条件和程序 第1部分：所有类型变送器的通用程序 |
China National Standards Ces |
English PDF |
| GB/T 26237.11-2023 |
Information technology - Biometric data exchange format - Part 11: ProCessed signature/signature dynamic data 信息技术 生物特征识别数据交换格式 第11部分：处理过的签名/签字动态数据 |
China National Standards Ces |
English PDF |
| GB/T 42474.3-2023 |
Safety monitoring system for vehicle transportation of explosive hazardous chemicals Part 3: Installation of vehicle-mounted deviCes 爆炸危险化学品汽车运输安全监控系统 第3部分：车载装置安装 |
China National Standards Ces |
English PDF |
| GB/T 42474.2-2023 |
Safety monitoring system for vehicle transportation of explosive hazardous chemicals Part 2: Vehicle-mounted deviCes 爆炸危险化学品汽车运输安全监控系统 第2部分：车载装置 |
China National Standards Ces |
English PDF |
| GB/T 42807-2023 |
Technical requirements for port basic geographic information exchange serviCes 港口基础地理信息交换服务技术要求 |
China National Standards Ces |
English PDF |
| GB/T 4937.23-2023 |
Semiconductor deviCes - Mechanical and climatic test methods - Part 23: High temperature operating life 半导体器件 机械和气候试验方法 第23部分：高温工作寿命 |
China National Standards Ces |
English PDF |
| GB/T 4937.27-2023 |
Semiconductor deviCes - Mechanical and climatic test methods - Part 27: Electrostatic discharge (ESD) susceptibility test - Machine model (MM) 半导体器件 机械和气候试验方法 第27部分：静电放电（ESD）敏感度测试 机器模型（MM） |
China National Standards Ces |
English PDF |
| GB/T 4937.32-2023 |
Semiconductor deviCes - Methods of mechanical and climatic tests - Part 32: Flammability of plastic encapsulated devices (externally induced) 半导体器件 机械和气候试验方法 第32部分：塑封器件的易燃性（外部引起的） |
China National Standards Ces |
English PDF |
| GB/T 4937.31-2023 |
Semiconductor deviCes - Methods of mechanical and climatic tests - Part 31: Flammability of plastic encapsulated devices (internal origin) 半导体器件 机械和气候试验方法 第31部分：塑封器件的易燃性（内部引起的） |
China National Standards Ces |
English PDF |
| GB/T 42749.5-2023 |
Information technology - IT enablement service business proCess outsourcing (ITES-BPO) life cycle process - Part 5: Guidelines 信息技术 IT赋能服务业务过程外包（ITES-BPO）生存周期过程 第5部分：指南 |
China National Standards Ces |
English PDF |
| GB/T 42749.4-2023 |
Information technology - IT enablement service business proCess outsourcing (ITES-BPO) life cycle process - Part 4: Terminology and concepts 信息技术 IT赋能服务业务过程外包（ITES-BPO）生存周期过程 第4部分：术语和概念 |
China National Standards Ces |
English PDF |
| GB/T 42749.3-2023 |
Information Technology IT Enablement ServiCes Business Process Outsourcing (ITES-BPO) Life Cycle Processes Part 3: Measurement Framework (MF) and Organizational Maturity Model (OMM) 信息技术 IT赋能服务业务过程外包（ITES-BPO）生存周期过程 第3部分：度量框架（MF）和组织成熟度模型(OMM) |
China National Standards Ces |
English PDF |
| GB/T 42749.2-2023 |
Information Technology - IT Enablement ServiCes Business Process Outsourcing (ITES-BPO) Life Cycle Processes Part 2: Process Assessment Model (PAM) 信息技术 IT赋能服务业务过程外包（ITES-BPO）生存周期过程 第2部分：过程评估模型（PAM） |
China National Standards Ces |
English PDF |
| GB/T 42749.1-2023 |
Information technology - IT enablement service business proCess outsourcing (ITES-BPO) life cycle process - Part 1: Process reference model (PRM) 信息技术 IT赋能服务业务过程外包（ITES-BPO）生存周期过程 第1部分：过程参考模型（PRM） |
China National Standards Ces |
English PDF |
| GB/T 42581-2023 |
Information Technology ServiCes - Evaluation Criteria for Data Center Business Continuity Levels 信息技术服务 数据中心业务连续性等级评价准则 |
China National Standards Ces |
English PDF |
| GB/T 42706.5-2023 |
Electronic components - Long term storage of semiconductor deviCes - Part 5: Chips and wafers 电子元器件 半导体器件长期贮存 第5部分：芯片和晶圆 |
China National Standards Ces |
English PDF |
| GB/T 42706.2-2023 |
Electronic components - Long-term storage of semiconductor deviCes - Part 2: Degradation mechanisms 电子元器件 半导体器件长期贮存 第2部分：退化机理 |
China National Standards Ces |
English PDF |
| GB/T 42706.1-2023 |
Electronic components - Long term storage of semiconductor deviCes - Part 1: General 电子元器件 半导体器件长期贮存 第1部分：总则 |
China National Standards Ces |
English PDF |
| GB/T 15879.604-2023 |
Mechanical standardization of semiconductor deviCes - Part 6-4: General rules for drawing outline drawings of surface mount semiconductor device packages - Dimensional measurement methods for ball array (BGA) packages 半导体器件的机械标准化 第6-4部分：表面安装半导体器件封装外形图绘制的一般规则 焊球阵列（BGA）封装的尺寸测量方法 |
China National Standards Ces |
English PDF |
| GB/T 42637-2023 |
Specifications for investigation of oceanic polymetallic sulphide resourCes 大洋多金属硫化物资源调查规范 |
China National Standards Ces |
English PDF |
| GB/T 4937.42-2023 |
Semiconductor deviCes - Mechanical and climatic test methods - Part 42: Temperature and humidity storage 半导体器件 机械和气候试验方法 第42部分：温湿度贮存 |
China National Standards Ces |
English PDF |
| GB/T 42709.7-2023 |
Semiconductor deviCes Microelectromechanical devices Part 7: MEMS bulk acoustic wave filters and duplexers for radio frequency control and selection 半导体器件 微电子机械器件 第7部分：用于射频控制和选择的MEMS体声波滤波器和双工器 |
China National Standards Ces |
English PDF |
| GB/T 42709.5-2023 |
Semiconductor deviCes Microelectromechanical devices Part 5: RF MEMS switches 半导体器件 微电子机械器件 第5部分：射频MEMS开关 |
China National Standards Ces |
English PDF |
| GB/T 22513-2023 |
Oil and gas drilling equipment Wellhead deviCes and Christmas trees 石油天然气钻采设备 井口装置和采油树 |
China National Standards Ces |
English PDF |
| GB/T 33685-2023 |
Technical Regulations for Seismic Exploration Data ProCessing 地震勘探数据处理技术规程 |
China National Standards Ces |
English PDF |
| GB/T 39139.2-2023 |
Shale gas—Environmental protection—Part 2: Recommended practiCes for environmental protection in production operations 页岩气 环境保护 第2部分：生产作业环境保护推荐作法 |
China National Standards Ces |
English PDF |
| GB/T 42461-2023 |
Information security technology - Guidelines for cost measurement of network security serviCes 信息安全技术 网络安全服务成本度量指南 |
China National Standards Ces |
English PDF |
| GB/T 17902.1-2023 |
Information technology - Security techniques - Digital signatures with appendiCes - Part 1: Overview 信息技术 安全技术 带附录的数字签名 第1部分：概述 |
China National Standards Ces |
English PDF |
| GB/T 32922-2023 |
Information Security Technology IPSec VPN Secure AcCess Basic Requirements and Implementation Guidelines 信息安全技术 IPSec VPN安全接入基本要求与实施指南 |
China National Standards Ces |
English PDF |
| GB/T 4214.5-2023 |
Noise test methods for household and similar electrical applianCes - Particular requirements for electric shavers, electric hair clippers and hair trimmers 家用和类似用途电器噪声测试方法 电动剃须刀、电理发剪及修发器的特殊要求 |
China National Standards Ces |
English PDF |
| GB/T 18779.3-2023 |
Geometric product specification (GPS) Measurement inspection of workpieCes and measuring equipment - Part 3: Guidance on reaching consensus on the expression of measurement uncertainty 产品几何技术规范（GPS） 工件与测量设备的测量检验 第3部分：关于测量不确定度表述达成共识的指南 |
China National Standards Ces |
English PDF |
| GB/T 18779.2-2023 |
Geometrical Product Specification (GPS) Measurement Inspection of WorkpieCes and Measuring Equipment Part 2: Guidance for the Evaluation of Measurement Uncertainty in GPS Measurements, Measurement Equipment Calibration, and Product Verification 产品几何技术规范(GPS) 工件与测量设备的测量检验 第2部分：GPS测量、测量设备校准和产品验证中的测量不确定度评估指南 |
China National Standards Ces |
English PDF |
| GB/T 4214.3-2023 |
Test methods for noise from household and similar electrical applianCes - Particular requirements for dishwashers 家用和类似用途电器噪声测试方法 洗碗机的特殊要求 |
China National Standards Ces |
English PDF |
| GB/T 42381.61-2023 |
Data quality - Part 61: Data quality management: ProCess reference model 数据质量 第61部分：数据质量管理：过程参考模型 |
China National Standards Ces |
English PDF |
| GB/T 42406-2023 |
Industrial cloud service knowledge base acCess and management requirements 工业云服务 知识库接入与管理要求 |
China National Standards Ces |
English PDF |
| GB/T 42421-2023 |
Quality requirements for digital science popularization resourCes 数字科普资源质量要求 |
China National Standards Ces |
English PDF |
| GB/T 37036.7-2023 |
Information technology - Biometrics for mobile deviCes - Part 7: Multimodal 信息技术 移动设备生物特征识别 第7部分：多模态 |
China National Standards Ces |
English PDF |
| GB/T 42495.1-2023 |
Financial ServiCes Global Legal Entity Identifier Part 1: Code Description 金融服务 全球法人识别编码 第1部分：编码说明 |
China National Standards Ces |
English PDF |
| GB/T 21078.1-2023 |
Financial serviCes - Personal identification number management and security - Part 1: PIN basic principles and requirements for card-based systems 金融服务 个人识别码管理与安全 第1部分：基于卡系统的PIN基本原则和要求 |
China National Standards Ces |
English PDF |
| GB/T 21078.4-2023 |
Financial serviCes - Personal identification number management and security - Part 4: Approved PIN encryption algorithms 金融服务 个人识别码管理与安全 第4部分：核准的PIN加密算法 |
China National Standards Ces |
English PDF |
| GB/T 37036.5-2023 |
Information technology - Biometric identification of mobile deviCes - Part 5: Voiceprint 信息技术 移动设备生物特征识别 第5部分：声纹 |
China National Standards Ces |
English PDF |
| GB/T 42331-2023 |
Guidelines for Technology Maturity Assessment of Tidal Current Power Generation DeviCes 潮流能发电装置技术成熟度评估导则 |
China National Standards Ces |
English PDF |
| GB/T 31047-2023 |
Brand Value Evaluation Food ProCessing and Food Manufacturing 品牌价值评价 食品加工及食品制造业 |
China National Standards Ces |
English PDF |
| GB/T 42493-2023 |
Guide to Management Consulting ServiCes 管理咨询服务指南 |
China National Standards Ces |
English PDF |
| GB/T 21109.2-2023 |
Functional safety of safety instrumented systems in the proCess industry - Part 2: Application guidelines for GB/T 21109.1-2022 过程工业领域安全仪表系统的功能安全 第2部分：GB/T 21109.1—2022的应用指南 |
China National Standards Ces |
English PDF |
| GB/T 42459-2023 |
Information technology - Telecommunication and information exchange between systems - Local and metropolitan area networks - Specific requirements - Site and media acCess control - Connectivity discovery 信息技术 系统间远程通信和信息交换 局域网和城域网 特定要求 站点和媒体访问控制连通性发现 |
China National Standards Ces |
English PDF |
| GB/T 42309-2023 |
Reinforcement method of fragile paper files in the restoration proCess 修复过程中易损毁类纸质档案加固方法 |
China National Standards Ces |
English PDF |
| GB/T 42454-2023 |
Information Technology ServiCes Digital Marketing Services Mobile Marketing Technical Specifications 信息技术服务 数字化营销服务 移动营销技术规范 |
China National Standards Ces |
English PDF |
| GB/T 42395.1-2023 |
Ergonomics - Sound quality limits and test methods for noise from household applianCes - Part 1: Refrigerators 人类工效学 家电噪声声品质限值和测试方法 第1部分：冰箱 |
China National Standards Ces |
English PDF |
| GB/T 42471-2023 |
Nanotechnology - Bending test method for flexible nano energy storage deviCes 纳米技术 柔性纳米储能器件弯曲测试方法 |
China National Standards Ces |
English PDF |
| GB/T 42299-2023 |
Design specification for rice proCessing enterprises 大米加工企业设计规范 |
China National Standards Ces |
English PDF |
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