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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 39798-2021 |
Test methods for optical properties of glass used on multiple units 动车组玻璃光学性能试验方法 |
China National Standards met |
 English PDF |
| GB/T 39797-2021 |
Test method for surface tension of glass melt -- Sessile drop method 玻璃熔体表面张力试验方法 座滴法 |
China National Standards met |
English PDF |
| GB/T 39796-2021 |
Test method for airbone sound insulating properties of glass used on multipe units 动车组玻璃隔声性能试验方法 |
China National Standards met |
English PDF |
| GB/T 39794.1-2021 |
Test method for wind uplift resistance of metal roof -- Part 1: Static pressure method 金属屋面抗风掀性能检测方法 第1部分：静态压力法 |
China National Standards met |
English PDF |
| GB/T 39789-2021 |
Non-destructive testing of welds—Eddy current-video integrated testing method of metal composites weld 焊缝无损检测 金属复合材料焊缝涡流视频集成检测方法 |
China National Standards met |
English PDF |
| GB/T 39788-2021 |
System and software engineering—Performance testing method 系统与软件工程 性能测试方法 |
China National Standards met |
English PDF |
| GB/T 39776-2021 |
Measuring and calculating methods of heat balance and heat efficiency of tunnel kiln of brick industrial 砖瓦工业隧道窑热平衡、热效率测定与计算方法 |
China National Standards met |
English PDF |
| GB/T 39771.2-2021 |
Optical radiation safety of LEDs—Part 2: Measurement methods 半导体发光二极管光辐射安全 第2部分：测试方法 |
China National Standards met |
English PDF |
| GB/T 39765-2021 |
Determination of benzene,methylbenzene,ethylbenzene,dimethybenzene in stationery—Gas chromatographic method 文具中苯、甲苯、乙苯及二甲苯的测定方法 气相色谱法 |
China National Standards met |
English PDF |
| GB/T 39764-2021 |
Volatile organic compounds from upholstered furniture—On-site and rapid detection method 软体家具中挥发性有机化合物 现场快速检测方法 |
China National Standards met |
English PDF |
| GB/T 39741.2-2021 |
Plain bearings—Tolerances—Part 2：Tolerances on geometrical characteristics and surface roughness for shafts and thrust collars 滑动轴承 公差 第2部分：轴和止推轴肩的几何公差及表面粗糙度 |
China National Standards met |
English PDF |
| 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 |
China National Standards met |
English PDF |
| GB/T 25388.2-2021 |
Wind turbines generator system—Double-fed converter—Part 2: Test method 风力发电机组 双馈式变流器 第2部分：试验方法 |
China National Standards met |
English PDF |
| GB/T 25387.2-2021 |
Wind turbines generator system—Full-power converter—Part 2:Test method 风力发电机组 全功率变流器 第2部分：试验方法 |
China National Standards met |
English PDF |
| GB/T 25387.1-2021 |
Wind turbines—Control system—Part 2：Test method 风力发电机组 全功率变流器 第1部分：技术条件 |
China National Standards met |
English PDF |
| GB/T 25386.2-2021 |
Wind turbines—Control system—Part 2：Test method 风力发电机组 控制系统 第2部分：试验方法 |
China National Standards met |
English PDF |
| GB/T 22373-2021 |
metadata of standard literature 标准文献元数据 |
China National Standards met |
English PDF |
| GB/T 20385.1-2021 |
Textiles—Determination of organotin compounds—Part 1：Derivatisation method using GC-MS 纺织品 有机锡化合物的测定 第1部分：衍生化气相色谱-质谱法 |
China National Standards met |
English PDF |
| GB/T 19934.1-2021 |
Hydraulic fluid power—Fatigue pressure testing of metal pressure-containing envelopes—Part 1: Test method 液压传动 金属承压壳体的疲劳压力试验 第1部分：试验方法 |
China National Standards met |
English PDF |
| GB/T 19753-2021 |
Test methods for energy consumption of light-duty hybrid electric vehicles 轻型混合动力电动汽车能量消耗量试验方法 |
China National Standards met |
English PDF |
| GB/T 18802.31-2021 |
Low-voltage surge protective devices -- Part 31: Surge protective devices connected to photovoltaic installations -- Requirements and test methods 低压电涌保护器 第31部分：用于光伏系统的电涌保护器 性能要求和试验方法 |
China National Standards met |
English PDF |
| GB/T 18386.1-2021 |
Test methods for energy consumption and range of electric vehicles—Part 1: Light-duty vehicles 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 |
China National Standards met |
English PDF |
| GB/T 18329.4-2021 |
Plain bearings—metallic multilayer plain bearings—Part 4:Non-destructive ultrasonic transmission testing of bond of thickness greater than or equal to 0.3 mm 滑动轴承 多层金属滑动轴承 第4部分: 合金厚度≥0.3mm的结合质量超声穿透无损检测 |
China National Standards met |
English PDF |
| GB/T 18329.3-2021 |
Plain bearings—metallic multilayer plain bearings—Part 3: Non-destructive penetrant testing 滑动轴承 多层金属滑动轴承 第3部分：无损渗透检验 |
China National Standards met |
English PDF |
| GB/T 17901.3-2021 |
Information technology—Security techniques—Key management—Part 3: Mechanisms using asymmetric techniques 信息技术 安全技术 密钥管理 第3部分：采用非对称技术的机制 |
China National Standards met |
English PDF |
| GB/T 17215.221-2021 |
Electricity metering equipment(a. c. ) -- General requirements, tests and test conditions -- Part 21: Tariff and load control equipment 电测量设备（交流） 通用要求、试验和试验条件 第21部分：费率和负荷控制设备 |
China National Standards met |
English PDF |
| GB/T 15914-2021 |
Monitoring and testing method for energy saving of steam heating equipments 蒸汽加热设备节能监测方法 |
China National Standards met |
English PDF |
| GB/T 14695-2021 |
Bucket wheel stacker reclaimer -- Type and basic parameters 臂式斗轮堆取料机 型式和基本参数 |
China National Standards met |
English PDF |
| GB/T 14352.22-2021 |
methods for chemical analysis of tungsten ores and molybdenum ores -- Part 22：Determination of antimony content -- Hydride generation atomic fluorescence spectrometry 钨矿石、钼矿石化学分析方法 第22部分：锑量的测定 氢化物发生-原子荧光光谱法 |
China National Standards met |
English PDF |
| GB/T 14352.21-2021 |
methods for chemical analysis of tungsten ores and molybdenum ores -- Part 21: Determination of arsenic content -- Hydride generation atomic fluorescence spectrometry 钨矿石、钼矿石化学分析方法 第21部分：砷量的测定 氢化物发生-原子荧光光谱法 |
China National Standards met |
English PDF |
| GB/T 14352.20-2021 |
methods for chemical analysis of tungsten ores and molybdenum ores -- Part 20：Determination of niobium，tantalum，zirconium，hafnium and 15 rare earth elements content -- Inductively coupled plasma mass spectrometry 钨矿石、钼矿石化学分析方法 第20部分：铌、钽、锆、铪及15个稀土元素量的测定 电感耦合等离子体质谱法 |
China National Standards met |
English PDF |
| GB/T 14352.19-2021 |
methods for chemical analysis of tungsten ores and molybdenum ores -- Part 19: Determination of bismuth, cadmium, cobalt, copper, iron, lithium, nickel, phosphorus, lead, strontium, vanadium and zinc content -- Inductive-coupled plasma atomic emission spe 钨矿石、钼矿石化学分析方法 第19部分：铋、镉、钴、铜、铁、锂、镍、磷、铅、锶、钒和锌量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards met |
English PDF |
| GB/T 12736-2021 |
Conveyor belts—Determination of strenght of mechanical fastenings—Static test method 输送带 机械接头强度的测定 静态试验方法 |
China National Standards met |
English PDF |
| GB/T 7308.1-2021 |
Plain bearings—Thin-walled half bearings with or without flange—Part 1：Tolerances, design features and methods of test 滑动轴承 有法兰或无法兰薄壁轴瓦 第1部分:公差、结构要素和检验方法 |
China National Standards met |
English PDF |
| GB/T 5162-2021 |
metallic powders—Determination of tap density 金属粉末 振实密度的测定 |
China National Standards met |
English PDF |
| 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 met |
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 met |
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 met |
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 met |
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 met |
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 met |
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 met |
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 met |
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 met |
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 met |
English PDF |
| GB/T 3296-2021 |
Test method for translucency of daily-use porcelain 日用瓷器透光度测定方法 |
China National Standards met |
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 met |
English PDF |
| GB/T 41165-2021 |
Accuracy evaluation methods of marine forecast results 海洋预报结果准确性检验评估方法 |
China National Standards met |
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 met |
English PDF |
| GB/T 41044-2021 |
Guidelines for coalbed methane extraction in coal mining areas 煤矿区煤层气抽采指南 |
China National Standards met |
English PDF |
| GB/T 19136-2021 |
Testing method of the accelerated storage stability at elevated temperature for pesticides 农药热储稳定性测定方法 |
China National Standards met |
English PDF |
| GB/T 1600-2021 |
Testing method of water for pesticides 农药水分测定方法 |
China National Standards met |
English PDF |
| GB/T 15981-2021 |
Evaluating method for the efficacy of sterilization for disinfection equipment 消毒器械灭菌效果评价方法 |
China National Standards met |
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 met |
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 met |
English PDF |
| GB/T 41107.2-2021 |
Destructive tests on welds in metallic materials -- Hot cracking tests for weldments -- Arc welding processes -- Part 2: Self-restraint tests 金属材料焊缝破坏性试验 焊件的热裂纹试验 弧焊方法 第2部分：自拘束试验 |
China National Standards met |
English PDF |
| GB/T 41107.1-2021 |
Destructive tests on welds in metallic materials -- Hot cracking tests for weldments -- Arc welding processes -- Part 1: General 金属材料焊缝破坏性试验 焊件的热裂纹试验 弧焊方法 第1部分：总则 |
China National Standards met |
English PDF |
| GB/T 26282-2021 |
Measuring methods of heat balance of cement rotary kiln 水泥回转窑热平衡测定方法 |
China National Standards met |
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 met |
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 met |
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 met |
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 met |
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 met |
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 met |
English PDF |
| GB/T 6730.25-2021 |
Iron ores—Determination of total rare earth contents—Oxalate gravimetric method 铁矿石 稀土总量的测定 草酸盐重量法 |
China National Standards met |
English PDF |
| GB/T 41038-2021 |
Energy consumption efficiency evaluation method for entrained-flow coal-water slurry gasification 气流床水煤浆气化能效计算方法 |
China National Standards met |
English PDF |
| GB/T 2384-2021 |
Dyes intermediates—General method for the determination of melting range 染料中间体 熔点范围测定通用方法 |
China National Standards met |
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 met |
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 met |
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 met |
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 met |
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 met |
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 met |
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 met |
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 met |
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 met |
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 met |
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 met |
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 met |
English PDF |
| GB/T 38265.15-2021 |
Test methods for soft soldering fluxes—Part 15: Copper corrosion test 软钎剂试验方法 第15部分：铜腐蚀试验 |
China National Standards met |
English PDF |
| GB/T 38265.14-2021 |
Test methods for soft soldering fluxes—Part 14: Assessment of tackiness of flux residues 软钎剂试验方法 第14部分：钎剂残留物胶粘性的评价 |
China National Standards met |
English PDF |
| GB/T 38265.13-2021 |
Test methods for soft soldering fluxes—Part 13: Determination of flux spattering 软钎剂试验方法 第13部分：钎剂溅散性的测定 |
China National Standards met |
English PDF |
| GB/T 38265.11-2021 |
Test methods for soft soldering fluxes—Part 11: Solubility of flux residues 软钎剂试验方法 第11部分：钎剂残留物的可溶性 |
China National Standards met |
English PDF |
| GB/T 38265.5-2021 |
Test methods for soft soldering fluxes -- Part 5: Copper mirror test 软钎剂试验方法 第5部分：铜镜试验 |
China National Standards met |
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 met |
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 met |
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 met |
English PDF |
| GB/T 6730.28-2021 |
Iron ores—Determination of fluorine content—Ion-selective electrode method 铁矿石 氟含量的测定 离子选择电极法 |
China National Standards met |
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 met |
English PDF |
| GB/T 10762-2021 |
method of mass measurements for industrial and mining electric locomotive 工矿电机车质量测量方法 |
China National Standards met |
English PDF |
| GB/T 16318-2021 |
Basic test method for rotating traction electrical machines 旋转牵引电机基本试验方法 |
China National Standards met |
English PDF |
| GB/T 41120-2021 |
Non-destructive testing -- Test method for non-ferromagnetic metallic component pulsed eddy current testing 无损检测 非铁磁性金属材料脉冲涡流检测 |
China National Standards met |
English PDF |
| GB/T 41109-2021 |
Earth-moving machinery -- Fuel consumption for grader -- Test methods 土方机械? 平地机燃油消耗量? 试验方法 |
China National Standards met |
English PDF |
| GB/T 7991.3-2021 |
Test method of viterous and porcelain enamels -- Part 3: Determination of resistance to thermal shock 搪玻璃层试验方法 第3部分：耐温差急变性能的测定 |
China National Standards met |
English PDF |
| GB/T 20724-2021 |
Microbeam analysis—method of thickness measurement for thin crystals by convergent beam electron diffraction 微束分析 薄晶体厚度的会聚束电子衍射测定方法 |
China National Standards met |
English PDF |
| GB/T 29732-2021 |
Surface chemical analysis—Medium resolution auger electron spectrometers—Calibration of energy scales for elemental analysis 表面化学分析 中等分辨俄歇电子能谱仪 元素分析用能量标校准 |
China National Standards met |
English PDF |
| GB/T 41031-2021 |
Liquefied coalbed methane 液化煤层气 |
China National Standards met |
English PDF |
| GB/T 41064-2021 |
Surface chemical analysis—Depth profiling—method for sputter rate determination in X-ray photoelectron spectroscopy, Auger electron spectroscopy and secondary-ion mass spectrometry sputter depth profiling using single and multi-layer thin films 表面化学分析 深度剖析 用单层和多层薄膜测定X射线光电子能谱、俄歇电子能谱和二次离子质谱中深度剖析溅射速率的方法 |
China National Standards met |
English PDF |
| GB/T 1927.20-2021 |
Test methods for physical and mechanical properties of small clear wood specimens—Part 20: Determination of cleavage strength 无疵小试样木材物理力学性质试验方法 第20部分：抗劈力测定 |
China National Standards met |
English PDF |
| GB/T 1927.19-2021 |
Test methods for physical and mechanical properties of small clear wood specimens—Part 19: Determination of static hardness 无疵小试样木材物理力学性质试验方法 第19部分：硬度测定 |
China National Standards met |
English PDF |
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