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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 5095.2507-2021 |
Electromechanical components for electronic equipment—Basic testing procedures aNd measuring methods—Part 25-7: Test 25g: Impedance, reflection coefficient, and voltage standing wave ratio (VSWR) 电子设备用机电元件 基本试验规程及测量方法 第25-7部分：试验25g：阻抗、反射系数和电压驻波比（VSWR） |
China National Standards Nd |
 English PDF |
| GB/T 5095.2505-2021 |
Electromechanical components for electronic equipment—Basic testing procedures aNd measuring methods—Part 25-5：Test 25e: Return loss 电子设备用机电元件 基本试验规程及测量方法 第25-5部分：试验25e：回波损耗 |
China National Standards Nd |
English PDF |
| GB/T 5095.2504-2021 |
Electromechanical components for electronic equipment—Basic testing procedures aNd measuring methods—Part 25-4: Test 25d: Propagation delay 电子设备用机电元件 基本试验规程及测量方法 第25-4部分：试验25d：传输时延 |
China National Standards Nd |
English PDF |
| GB/T 5095.2503-2021 |
Electromechanical components for electronic equipment—Basic testing procedures aNd measuring methods—Part 25-3: Test 25c: Rise time degradation 电子设备用机电元件 基本试验规程及测量方法 第25-3部分：试验25c：上升时间衰减 |
China National Standards Nd |
English PDF |
| GB/T 5095.2502-2021 |
Electromechanical components for electronic equipment—Basic testing procedures aNd measuring methods—Part 25-2: Test 25b: Attenuation (insertion loss) 电子设备用机电元件 基本试验规程及测量方法 第25-2部分：试验25b：衰减（插入损耗） |
China National Standards Nd |
English PDF |
| GB/T 5095.2501-2021 |
Electromechanical components for electronic equipment—Basic testing procedures aNd measuring methods—Part 25-1: Test 25a: Crosstalk ratio 电子设备用机电元件 基本试验规程及测量方法 第25-1部分：试验25a：串扰比 |
China National Standards Nd |
English PDF |
| GB/T 5095.2307-2021 |
Electromechanical components for electronic equipment—Basic testing procedures aNd measuring methods—Part 23-7: Screening and filtering tests—Test 23g: Effective transfer impedance of connectors 电子设备用机电元件 基本试验规程及测量方法 第23-7部分：屏蔽和滤波试验 试验23g：连接器的有效转移阻抗 |
China National Standards Nd |
English PDF |
| GB/T 5095.2304-2021 |
Electromechanical components for electronic equipment—Basic testing procedures aNd measuring methods—Part 23-4: Screening and filtering tests—Test 23d: Transmission line reflections in the time domain 电子设备用机电元件 基本试验规程及测量方法 第23-4部分：屏蔽和滤波试验 试验23d：时域内传输线的反射 |
China National Standards Nd |
English PDF |
| GB/T 5095.2303-2021 |
Electromechanical components for electronic equipment—Basic testing procedures aNd measuring methods—Part 23-3:Screening and filtering tests—Test 23c：Shielding effectiveness of connectors and accessories—Line injection method 电子设备用机电元件 基本试验规程及测量方法 第23-3部分：屏蔽和滤波试验 试验23c：连接器和附件的屏蔽效果 线注入法 |
China National Standards Nd |
English PDF |
| GB/T 4797.9-2021 |
Classification of environmental coNditions—Environmental conditions appearing in nature—Measured shock and vibration data during storage, transportation and in-use 环境条件分类 自然环境条件 贮存、运输和使用过程中测得的冲击和振动数据 |
China National Standards Nd |
English PDF |
| GB/T 4490-2021 |
Conveyor belts with textile carcass—Widths aNd lengths 织物芯输送带 宽度和长度 |
China National Standards Nd |
English PDF |
| GB/T 4022.1-2021 |
Surface griNding machines with horizontal grinding wheel spindle and reciprocating table—Testing of the accuracy—Part 1：Machines with table surface length of up to 1600 mm 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 |
China National Standards Nd |
English PDF |
| GB/T 3792-2021 |
Information aNd documentation—Resource description 信息与文献 资源描述 |
China National Standards Nd |
English PDF |
| GB/T 3684-2021 |
Conveyor belts—Electrical coNductivity—Specification and test method 输送带 导电性 规范和试验方法 |
China National Standards Nd |
English PDF |
| GB/T 3480.2-2021 |
Calculation of load capacity of spur aNd helical gears—Part 2: Calculation of surface durability (pitting) 直齿轮和斜齿轮承载能力计算 第2部分：齿面接触强度（点蚀）计算 |
China National Standards Nd |
English PDF |
| GB/T 2889.5-2021 |
Plain bearings—Terms, definitions, classification aNd symbols—Part 5:Application of symbols 滑动轴承 术语、定义、分类和符号 第5部分:符号的应用 |
China National Standards Nd |
English PDF |
| GB/T 2680-2021 |
Glass in building—Determination of light transmittance, solar direct transmittance, total solar energy transmittance, ultraviolet transmittance aNd related glazing factors 建筑玻璃 可见光透射比、太阳光直接透射比、太阳能总透射比、紫外线透射比及有关窗玻璃参数的测定 |
China National Standards Nd |
English PDF |
| GB/T 1454-2021 |
Test method for edgewise compressive properties of saNdwich constructions 夹层结构侧压性能试验方法 |
China National Standards Nd |
English PDF |
| GB/T 1406.3-2021 |
Types aNd dimensions of lamp caps—Part 3：Prefocus caps 灯头的型式和尺寸 第3部分：预聚焦式灯头 |
China National Standards Nd |
English PDF |
| GB/T 41021-2021 |
Forensic sciences -- Content aNd format of DNA identification report 法庭科学? DNA鉴定文书内容及格式 |
China National Standards Nd |
English PDF |
| GB/T 14914.6-2021 |
The specification for marine observation—Part 6:Data processing aNd quality control of marine observational data 海洋观测规范 第6部分：数据处理与质量控制 |
China National Standards Nd |
English PDF |
| GB/T 14914.3-2021 |
The specification for marine observation -- Part 3: Surface aNd subsurface buoy-based observation 海洋观测规范 第 3 部分：浮标潜标观测 |
China National Standards Nd |
English PDF |
| GB/T 9254.1-2021 |
Information technology equipment, multimedia equipment aNd receivers -- Electromagnetic compatibility -- Part 1: Emission requirements 信息技术设备、多媒体设备和接收机 电磁兼容 第1部分：发射要求 |
China National Standards Nd |
English PDF |
| GB/T 283-2021 |
Rolling bearings—CyliNdrical roller bearings—Boundary dimensions 滚动轴承 圆柱滚子轴承 外形尺寸 |
China National Standards Nd |
English PDF |
| GB/T 34273-2021 |
StaNdard test method for calculated cetane index of coal liquefaction diesel—Four variable equetion 煤液化柴油十六烷指数计算法 四变量公式法 |
China National Standards Nd |
English PDF |
| GB/T 8563.3-2021 |
Classification aNd codes for information of reward and disciplinary action -- Part 3: Codes of disciplinary action and organizational punishment 奖励、纪律处分信息分类与代码? 第3部分：纪律处分和组织处理代码 |
China National Standards Nd |
English PDF |
| GB/T 41205.1-2021 |
Code aNd attribute description of emergency supplies -- Part 1: Personal protective equipment 应急物资编码与属性描述 第1部分：个体防护装备 |
China National Standards Nd |
English PDF |
| GB/T 41205.2-2021 |
Code aNd attribute description of emergency supplies -- Part 2: Decontamination material and equipment 应急物资编码与属性描述 第2部分：洗消器材及设备 |
China National Standards Nd |
English PDF |
| GB/T 41205.3-2021 |
Code aNd attribute description of emergency supplies -- Part 3: Search and rescue equipment 应急物资编码与属性描述 第3部分：搜救设备 |
China National Standards Nd |
English PDF |
| GB/T 41074-2021 |
Microbeam analysis -- Method of specimen preparation for analysis of general powders using WDS aNd EDS 微束分析 用于波谱和能谱分析的粉末试样制备方法 |
China National Standards Nd |
English PDF |
| GB/T 15579.14-2021 |
Arc welding equipment -- Part 14: Calibration, validation aNd consistency testing 弧焊设备 第14部分：校准、确认和一致性试验 |
China National Standards Nd |
English PDF |
| GB/T 21419-2021 |
Transformers, power supplies, reactors aNd similar products—EMC requirements 变压器、电源装置、电抗器及其类似产品 电磁兼容（EMC）要求 |
China National Standards Nd |
English PDF |
| GB/T 41042-2021 |
Guidance for utilization aNd classification of content of valuable elements in coal 煤中有价元素含量分级及应用导则 |
China National Standards Nd |
English PDF |
| GB/T 41043-2021 |
Coordinative development effectiveness evaluation iNdicator and method of coal and coalbed methane 煤与煤层气协调开发效果评价指标及计算方法 |
China National Standards Nd |
English PDF |
| GB/T 3099.4-2021 |
Terminology of fasteners—Control, inspection, delivery, acceptance aNd quality 紧固件术语 控制、检查、交付、接收和质量 |
China National Standards Nd |
English PDF |
| GB/T 20303.5-2021 |
Cranes—Cabins aNd control stations—Part 5: Overhead travelling and portal bridge cranes 起重机 司机室和控制站 第5 部分:桥式和门式起重机 |
China National Standards Nd |
English PDF |
| GB/T 17743-2021 |
Limits aNd methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment 电气照明和类似设备的无线电骚扰特性的限值和测量方法 |
China National Standards Nd |
English PDF |
| GB/T 4657-2021 |
Codes for the central party aNd state organs people’s communities and the other state organizations 中央党政机关、人民团体及其他机构代码 |
China National Standards Nd |
English PDF |
| GB/T 8563.1-2021 |
Classification aNd codes for information of reward and disciplinary action -- Part 1: Codes of medal, honorary title and reward 奖励、纪律处分信息分类与代码 第1部分：勋章、荣誉称号和表彰奖励代码 |
China National Standards Nd |
English PDF |
| GB/T 30887-2021 |
Technical guide for water system integration aNd optimization of industrial enterprises 工业企业水系统集成优化技术指南 |
China National Standards Nd |
English PDF |
| GB/T 41249-2021 |
INdustrial assistance—Guidance for operation management of “pig-biogas-fruit (grain and vegetable)”circular agricultural project 产业帮扶 “猪-沼-果（粮、菜）” 循环农业项目运营管理指南 |
China National Standards Nd |
English PDF |
| GB/T 21938-2021 |
Earth-moving machinery─Hydraulic excavator aNd backhoe loader lowering control device─Requirements and tests 土方机械 液压挖掘机和挖掘装载机下降控制装置 要求和试验 |
China National Standards Nd |
English PDF |
| GB/T 22565.1-2021 |
Metallic materials -- Sheet aNd strip -- Method for spring back evaluation -- Part 1: Stretch bending 金属材料 薄板和薄带 回弹性能评估方法 第1部分：拉弯法 |
China National Standards Nd |
English PDF |
| GB/T 5121.28-2021 |
Methods for chemical analysis of copper aNd copper alloys—Part 28：Determination of chromium,iron,manganese,cobalt,nickel,zinc,arsenic,selenium,silver,cadmium,tin,antimony,tellurium,lead and bismuth content—Inductively coupled plasma-mass spectrometry 铜及铜合金化学分析方法 第28部分：铬、铁、锰、钴、镍、锌、砷、硒、银、镉、锡、锑、碲、铅和铋含量的测定 电感耦合等离子体质谱法 |
China National Standards Nd |
English PDF |
| GB/T 7991.1-2021 |
Test method of viterous aNd porcelain enamels—Part 1：Determination of resistance to alkaline liquids 搪玻璃层试验方法 第1部分：耐碱性溶液腐蚀性能的测定 |
China National Standards Nd |
English PDF |
| GB/T 6113.104-2021 |
Specification for radio disturbance aNd immunity measuring apparatus and methods—Part 1-4:Radio disturbance and immunity measuring apparatus—Antennas and test sites for radiated disturbance measurements 无线电骚扰和抗扰度测量设备和测量方法规范 第1-4部分：无线电骚扰和抗扰度测量设备 辐射骚扰测量用天线和试验场地 |
China National Standards Nd |
English PDF |
| GB/T 6113.101-2021 |
Specification for radio disturbance aNd immunity measuring apparatus and methods—Part 1-1: Radio disturbance and immunity measuring apparatus—Measuring apparatus 无线电骚扰和抗扰度测量设备和测量方法规范 第1-1部分：无线电骚扰和抗扰度测量设备 测量设备 |
China National Standards Nd |
English PDF |
| GB/T 41039-2021 |
The general rules of determing designed coal aNd checked coal in modern coal chemical technology 现代煤化工项目设计煤种和校核煤种确定通则 |
China National Standards Nd |
English PDF |
| GB/T 14598.118-2021 |
Measuring relays aNd protection equipment -- Part 118: Synchrophasor for power systems -- Measurements 量度继电器和保护装置 第118部分：电力系统同步相量 测量 |
China National Standards Nd |
English PDF |
| GB/T 41164-2021 |
Specifications technology for multistage fracturing in horizontal well within roof of broken-soft aNd low permeability coal seam 碎软低渗煤层顶板水平井分段压裂技术规范 |
China National Standards Nd |
English PDF |
| GB/T 41138-2021 |
Product quality information system -- Information classification, sharing aNd exchange 产品质量信息系统 信息分类与共享交换 |
China National Standards Nd |
English PDF |
| GB/T 10892-2021 |
Stationary air compressors -- Safety rules aNd code of practice 固定的空气压缩机 安全规则和操作规程 |
China National Standards Nd |
English PDF |
| GB/T 41108.3-2021 |
Safety of machinery -- Safety requirements for interlocking devices -- Part 3: Trapped key interlocking devices aNd systems 机械安全 联锁装置的安全要求 第3部分：截留钥匙联锁装置及系统 |
China National Standards Nd |
English PDF |
| GB/T 14598.181-2021 |
Measuring relays aNd protection equipment -- Part 181：Functional requirements for frequency protection 量度继电器和保护装置 第181 部分：频率保护功能要求 |
China National Standards Nd |
English PDF |
| GB/T 26281-2021 |
Methods for the calculation of heat balance，heat efficiency aNd comprehensive energy consumption of cement rotary kiln 水泥回转窑热平衡、热效率、综合能耗计算方法 |
China National Standards Nd |
English PDF |
| GB/T 3670-2021 |
Covered electordes for manual metal arc welding of copper aNd copper alloys 铜及铜合金焊条 |
China National Standards Nd |
English PDF |
| GB/T 41111-2021 |
Rods for gas welding of non-alloy aNd creep-resisting steels 气焊用非合金钢及热强钢填充丝 |
China National Standards Nd |
English PDF |
| GB/T 41110-2021 |
Tubular cored electrodes for gas shielded aNd non-gas shielded metal arc welding of nickel and nickel alloys 镍及镍合金药芯焊丝 |
China National Standards Nd |
English PDF |
| GB/T 41112-2021 |
Solid wire electrodes, solid wires aNd rods for fusion welding of magnesium and magnesium alloys 镁及镁合金焊丝 |
China National Standards Nd |
English PDF |
| GB/T 26465-2021 |
Safety rules for the construction aNd installation of firefighters lifts 消防员电梯制造与安装安全规范 |
China National Standards Nd |
English PDF |
| GB/T 41123.3-2021 |
Non-destructive testing—Radiation methods for iNdustrial computed tomography—Part 3:Qualification 无损检测 工业射线计算机层析成像检测 第3部分：验证 |
China National Standards Nd |
English PDF |
| GB/T 41123.2-2021 |
Non-destructive testing—Radiation methods for iNdustrial computed tomography—Part 2:Operation and interpretation 无损检测 工业射线计算机层析成像检测 第2部分：操作和解释 |
China National Standards Nd |
English PDF |
| GB/T 41123.1-2021 |
Non-destructive testing -- Radiation methods for iNdustrial computed tomography -- Part 1: Principles, equipment and samples 无损检测 工业射线计算机层析成像检测 第1部分：原理、设备和样品 |
China National Standards Nd |
English PDF |
| GB/T 12604.12-2021 |
Non-destructive testing -- Terminology -- Part 12: Radiation methods for iNdustrial computed tomography 无损检测? 术语? 第12部分：工业射线计算机层析成像检测 |
China National Standards Nd |
English PDF |
| GB/T 41105.3-2021 |
Non-destructive testing -- Measurement aNd evaluation of the X-ray tube voltage -- Part 3: Spectrometric method 无损检测? X射线管电压的测量和评价 第3部分：能谱法 |
China National Standards Nd |
English PDF |
| GB/T 41105.2-2021 |
Non-destructive testing -- Measurement aNd evaluation of the X-ray tube voltage -- Part 2: Constancy check by the thick filter method 无损检测? X射线管电压的测量和评价 第2部分：厚板滤波法稳定性核查 |
China National Standards Nd |
English PDF |
| GB/T 15829-2021 |
Soft soldering flux -- Classification aNd requirements 软钎剂 分类与性能要求 |
China National Standards Nd |
English PDF |
| GB/T 41113-2021 |
Qualification testing of brazers aNd brazing operators 硬钎焊工和硬钎焊操作工技能评定 |
China National Standards Nd |
English PDF |
| GB/T 41104.3-2021 |
Solder wire, solid aNd flux cored -- Specifications and test methods -- Part 3: Wetting balance test method for flux cored solder wire efficacy 实心和药芯软钎料丝? 规范和试验方法? 第3部分：药芯软钎料丝功效的润湿平衡试验方法 |
China National Standards Nd |
English PDF |
| GB/T 41104.2-2021 |
Solder wire, solid aNd flux cored -- Specification and test methods -- Part 2: Determination of flux content 实心和药芯软钎料丝? 规范和试验方法? 第2部分：钎剂含量的测定 |
China National Standards Nd |
English PDF |
| GB/T 41104.1-2021 |
Solder wire, solid aNd flux cored -- Specification and test methods -- Part 1: Classification and performance requirements 实心和药芯软钎料丝? 规范和试验方法? 第1部分：分类和性能要求 |
China National Standards Nd |
English PDF |
| GB/T 22437.5-2021 |
Cranes—Design principles for loads aNd load combinations—Part 5：Overhead travelling and portal bridge cranes 起重机 载荷与载荷组合的设计原则 第5部分：桥式和门式起重机 |
China National Standards Nd |
English PDF |
| GB/T 41105.1-2021 |
Non-destructive testing—Measurement aNd evaluation of the X-ray tube voltage—Part 1:Voltage divider method 无损检测 X射线管电压的测量和评价 第1部分：分压法 |
China National Standards Nd |
English PDF |
| GB/T 8593.2-2021 |
Earth-moving machinery—Symbols for operator controls aNd other displays—Part 2:Symbols for specific machines,equipment and accessories 土方机械 司机操纵装置和其他显示装置用符号 第2部分：机器、工作装置和附件的特殊符号 |
China National Standards Nd |
English PDF |
| GB/T 8593.1-2021 |
Earth-moving machinery -- Symbols for operator controls aNd other displays -- Part 1: Common symbols 土方机械? 司机操纵装置和其他显示装置用符号? 第1部分：通用符号 |
China National Standards Nd |
English PDF |
| GB/T 2449.1-2021 |
Sulphur for iNdustrial use—Part 1: Solid product 工业硫磺 第1部分：固体产品 |
China National Standards Nd |
English PDF |
| GB/T 29004-2021 |
Rice transplanter -- Evaluation iNdex and measurement methods for fuel consumption 水稻插秧机 燃油消耗量指标及测量方法 |
China National Standards Nd |
English PDF |
| GB/T 24818.2-2021 |
Cranes—Access, guards aNd restraints—Part 2: Mobile cranes 起重机 通道及安全防护设施 第2部分：流动式起重机 |
China National Standards Nd |
English PDF |
| GB/T 20303.2-2021 |
Cranes—Cabins aNd control stations—Part 2:Mobile cranes 起重机 司机室和控制站 第2部分：流动式起重机 |
China National Standards Nd |
English PDF |
| GB/T 8100.3-2021 |
Mounting surfaces of hydraulic valves—Part 3: Pressure-reducing valves, sequence valves, unloading valves, throttle valves aNd check valves 液压阀安装面 第3部分：减压阀、顺序阀、卸荷阀、节流阀和单向阀 |
China National Standards Nd |
English PDF |
| GB/T 41176-2021 |
Professional sportswear -- Ski aNd snowboard wear 专业运动服装? 滑雪服 |
China National Standards Nd |
English PDF |
| GB/T 24604-2021 |
Rolling bearings－Angular contact thrust ball bearings aNd units for machine tool screws 滚动轴承 机床丝杠用推力角接触球轴承及单元 |
China National Standards Nd |
English PDF |
| GB/T 6445-2021 |
Rolling bearings—Needle roller bearing track rollers—BouNdary dimensions, geometrical product specifications (GPS) and tolerance values 滚动轴承 滚轮滚针轴承 外形尺寸、产品几何技术规范（GPS）和公差值 |
China National Standards Nd |
English PDF |
| GB/T 38055.5-2021 |
Rough-terrain trucks—User requirements—Part 5: Interface between variable-reach truck aNd intergrated personnel work platform 越野叉车 对用户的要求 第5部分：伸缩臂式叉车和集成式人员工作平台的连接装置 |
China National Standards Nd |
English PDF |
| GB/T 38055.4-2021 |
Rough-terrain trucks—User requirements—Part 4: Additional requirements for variable-reach trucks haNdling freely suspended loads 越野叉车 对用户的要求 第4部分:悬吊可自由摆动载荷伸缩臂式叉车的附加要求 |
China National Standards Nd |
English PDF |
| GB/T 26949.12-2021 |
INdustrial trucks—Verification of stability—Part 12:Industrial variable-reach trucks handling freight containers of 6 m length and longer 工业车辆 稳定性验证 第12部分：搬运6 m及其以上长度货运集装箱的伸缩臂式叉车 |
China National Standards Nd |
English PDF |
| GB/T 41135.2-2021 |
Current aNd voltage sensors or detectors, to be used for fault passage indication purposes -- Part 2: System aspects 故障路径指示用电流和电压传感器或探测器?? 第2部分：系统应用 |
China National Standards Nd |
English PDF |
| GB/T 41135.1-2021 |
Current aNd voltage sensors or detectors, to be used for fault passage indication purposes -- Part 1: General principles and requirements 故障路径指示用电流和电压传感器或探测器?? 第1部分：通用原理和要求 |
China National Standards Nd |
English PDF |
| GB/T 41106.6-2021 |
Large-scale amusement devices -- Inspection, maintenance aNd repair -- Part 6: Sort of virtual experience rides 大型游乐设施 检查、维护保养与修理 第6部分：虚拟体验类 |
China National Standards Nd |
English PDF |
| GB/T 41106.5-2021 |
Large-scale amusement devices -- Inspection, maintenance aNd repair -- Part 5: Sort of aquatic rides 大型游乐设施 检查、维护保养与修理 第5部分：水上类 |
China National Standards Nd |
English PDF |
| GB/T 41106.4-2021 |
Large-scale amusement devices -- Inspection, maintenance aNd repair -- Part 4: Sort of lifting rides 大型游乐设施 检查、维护保养与修理 第4部分：升降类 |
China National Standards Nd |
English PDF |
| GB/T 41106.3-2021 |
Large-scale amusement devices -- Inspection, maintenance aNd repair -- Part 3: Sort of rotary rides 大型游乐设施 检查、维护保养与修理 第3部分：旋转类 |
China National Standards Nd |
English PDF |
| GB/T 41106.2-2021 |
Large-scale amusement devices -- Inspection, maintenance aNd repair -- Part 2: Sort of track rides 大型游乐设施 检查、维护保养与修理 第2部分：轨道类 |
China National Standards Nd |
English PDF |
| GB/T 41106.1-2021 |
Large-scale amusement devices -- Inspection, maintenance aNd repair -- Part 1: General 大型游乐设施 检查、维护保养与修理 第1部分：总则 |
China National Standards Nd |
English PDF |
| GB/T 26301-2021 |
Copper-nickel-zinc alloy strips aNd foils for shield 屏蔽用锌白铜带箔材 |
China National Standards Nd |
English PDF |
| GB/T 26024-2021 |
Seamless copper aNd copper alloys tube for valves on air-conditioning and refrigeration system 空调与制冷系统阀件用铜及铜合金无缝管 |
China National Standards Nd |
English PDF |
| GB/T 24807-2021 |
Electromagnetic compatibility for lifts, escalators aNd moving walks—Emission 电梯、自动扶梯和自动人行道的电磁兼容 发射 |
China National Standards Nd |
English PDF |
| GB/T 26557-2021 |
Builders hoists for persons aNd materials with vertically guided cages 吊笼有垂直导向的人货两用施工升降机 |
China National Standards Nd |
English PDF |
| GB/T 22473.1-2021 |
Batteries used for energy storage -- Part 1: Photovoltaic off-grid application technical coNditions 储能用蓄电池? 第1部分：光伏离网应用技术条件 |
China National Standards Nd |
English PDF |
| GB/T 41139-2021 |
Requirements of staNdard conformance testing for information classification coding and metadata 信息分类编码及元数据标准符合性测试要求 |
China National Standards Nd |
English PDF |
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