China National Standards

China EC GB Standards English PDF List


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.
  •  China "EC" GB Standards English PDF List:
  • Standard  Code Standard Title Standard Class Order
    GB/T 15510-2008 General rules for reliability test of elECtromagnetic relay for control circuits
    控制用电磁继电器可靠性试验通则
    China National Standards
    EC

    English PDF
    GB/T 14598.8-2008 ElECtrical relays - Part 20: Protection systems
    电气继电器 第20部分: 保护系统
    China National Standards
    EC

    English PDF
    GB/T 14598.300-2008 General spECification for microcomputer-based transformer protection equipment
    微机变压器保护装置通用技术要求
    China National Standards
    EC

    English PDF
    GB/T 14598.13-2008 ElECtrical relays - Part 22-1:Electrical disturbance tests for measuring relays and protection equipment - 1 MHz burst immunity tests
    电气继电器 第22-1部分:量度继电器和保护装置的电气骚扰试验 1 MHz脉冲群抗扰度试验
    China National Standards
    EC

    English PDF
    GB/T 14339-2008 Testing method for defECt of man-made staple fibres
    化学纤维 短纤维疵点试验方法
    China National Standards
    EC

    English PDF
    GB/T 12703.1-2008 Textile - Evaluation for elECtrostatic properties - Part 1: Static half period
    纺织品 静电性能的评定 第1部分:静电压半衰期
    China National Standards
    EC

    English PDF
    GB/T 11805-2008 Basic spECifications of automatic control components (devices) and their related system for hydroturbine-generating sets
    水轮发电机组自动化元件(装置)及其系统基本技术条件
    China National Standards
    EC

    English PDF
    GB 9089.5-2008 ElECtrical installations for outdoor sites under heavy conditions - Part 5: Operating requirements
    户外严酷条件下的电气设施 第5部分: 操作要求
    China National Standards
    EC

    English PDF
    GB/T 8322-2008 MolECular absorption spectrometry - Terminology
    分子吸收光谱法 术语
    China National Standards
    EC

    English PDF
    GB/T 3780.17-2008 Carbon black - Part 17:IndirECt determination of particle size - Reflectance method
    炭黑 第17部分:粒径的间接测定 反射率法
    China National Standards
    EC

    English PDF
    GB/T 22039-2008 The laser digital non-destructive inspECtion method for aircraft tyres
    航空轮胎激光数字无损检测方法
    China National Standards
    EC

    English PDF
    GB/T 22037-2008 Bead fit test method for tube aircraft tyre - ElECtrical
    航空有内胎轮胎胎圈密合压力试验方法 电测法
    China National Standards
    EC

    English PDF
    GB/T 16623-2008 TEChnical specification of press-on solid tyres
    压配式实心轮胎技术规范
    China National Standards
    EC

    English PDF
    GB/T 16483-2008 Safety data sheet for chemical products content and order of sECtions
    化学品安全技术说明书 内容和项目顺序
    China National Standards
    EC

    English PDF
    GB/T 11213.7-2008 Test methods of sodium hydroxide for chemical fiber use -Part 7:Determination of copper content-spECtrometric method
    化纤用氢氧化钠试验方法 第7部分:铜含量的测定 分光光度法
    China National Standards
    EC

    English PDF
    GB/T 11200.2-2008 Sodium hydroxide for industrial use - Determination of aluminium oxide content - SpECtrometric method
    高纯氢氧化钠试验方法 第2部分:三氧化二铝含量的测定 分光光度法
    China National Standards
    EC

    English PDF
    GB/T 10824-2008 TEChnical specification of solid tyres for pneumatic tyres rims
    充气轮胎轮辋实心轮胎技术规范
    China National Standards
    EC

    English PDF
    GB/T 22101.1-2008 TEChnical specification for evaluating resistance of cotton to disease and insect pests - Part 1: Cotton bollworm
    棉花抗病虫性评价技术规范 第1部分:棉铃虫
    China National Standards
    EC

    English PDF
    GB/T 22238-2008 Information tEChnology - Tibetan coded character set - Extension B
    信息技术 藏文编码字符集 扩充集B
    China National Standards
    EC

    English PDF
    GB/T 22084.2-2008 SECondary cells and batteries containing alkaline or other non-acid electrolytes - Portable sealed rechargeable single cells - Part 2: Nickel-metal hydride
    含碱性或其它非酸性电解质的蓄电池和蓄电池组 便携式密封单体蓄电池 第2部分:金属氢化物镍电池
    China National Standards
    EC

    English PDF
    GB/T 22084.1-2008 SECondary cells and batteries containing alkaline or other non-acid electrolytes - Portable sealed rechargeable single cells - Part 1:Nickel-cadmium
    含碱性或其它非酸性电解质的蓄电池和蓄电池组 便携式密封单体蓄电池 第1部分:镉镍电池
    China National Standards
    EC

    English PDF
    GB/T 18910.5-2008 Liquid crystal and solid-state display devices - Part 5:Environmental,endurance and mEChanical test methods
    液晶和固态显示器件 第5部分:环境、耐久性和机械试验方法
    China National Standards
    EC

    English PDF
    GB/T 18910.3-2008 Liquid crystal and solid-state display devices - Part 3: SECtional specification for liquid crystal display (LCD) cells
    液晶和固态显示器件 第3部分: 液晶显示屏分规范
    China National Standards
    EC

    English PDF
    GB/T 17969.3-2008 Information tEChnology - Open systems interconnection - Procedures for the operation of OSI registration authorities: Registration of Object identifier arcs beneath the top-level arc jointly administered by ISO and ITU-T
    信息技术 开放系统互连 OSI登记机构的操作规程 第3部分:ISO和ITU-T联合管理的顶级弧下的客体标识符弧的登记
    China National Standards
    EC

    English PDF
    GB/T 17552-2008 Information tEChnology - Identification cards - Financial transaction cards
    信息技术 识别卡 金融交易卡
    China National Standards
    EC

    English PDF
    GB/T 15122-2008 Information tEChnology - Designation of unrecorded flexible disk cartridges
    信息技术 未记录软磁盘的标志
    China National Standards
    EC

    English PDF
    GB/T 6150.7-2008 Methods for chemical analysis of tungsten concentrates - Determination of tantalum content and niobium content - Inductively coupled plasma emission spECtrometry and spectrophotometry
    钨精矿化学分析方法 钽铌量的测定 等离子体发射光谱法和分光光度法
    China National Standards
    EC

    English PDF
    GB/T 6150.2-2008 Methods for chemical analysis of tungsten concentrates - Determination of tin content - The potassium iodate volumetry and hydrogenate atomic absorption spECtrometry
    钨精矿化学分析方法 锡量的测定 碘酸钾容量法和氢化物原子吸收光谱法
    China National Standards
    EC

    English PDF
    GB/T 6150.17-2008 Methods for chemical analysis of tungsten concentrates - Determination of antimony content - Hydride reduction atomic absorption spECtrometry
    钨精矿化学分析方法 锑量的测定 氢化物原子吸收光谱法
    China National Standards
    EC

    English PDF
    GB/T 6150.13-2008 Methods for chemical analysis of tungsten concentrates - Determination of arsenic content - Hydride reduction atomic absorption spECtrometry and the silver diethyldithiocarbamate(DDTC-Ag) photometry
    钨精矿化学分析方法 砷量的测定 氢化物原子吸收光谱法和DDTC-Ag分光光度法
    China National Standards
    EC

    English PDF
    GB/T 6150.12-2008 Methods for chemical analysis of tungsten concentrates-Determination of silicon dioxide content - The silicomolybdenum blue spECtrophotometry and the gravimetry
    钨精矿化学分析方法 二氧化硅量的测定 硅钼蓝分光光度法和重量法
    China National Standards
    EC

    English PDF
    GB/T 5121.27-2008 Methods for chemical analysis of copper and copper alloys - Part 27:The inductively coupled plasma atomic emission spECtromertric method
    铜及铜合金化学分析方法 第27部分:电感耦合等离子体原子发射光谱法
    China National Standards
    EC

    English PDF
    GB/Z 18219-2008 Information tEChnology - Reference model of data management
    信息技术 数据管理参考模型
    China National Standards
    EC

    English PDF
    GB/T 22034-2008 Information tEChnology - Keyboard layout of the alphanumeric zone for Tibetan coded character set
    信息技术 藏文编码字符集键盘字母数字区的布局
    China National Standards
    EC

    English PDF
    GB/T 22033-2008 Information tEChnology - Terminology for embedded systems
    信息技术 嵌入式系统术语
    China National Standards
    EC

    English PDF
    GB/T 4934.1-2008 Instrument for soil test - Shear apparatus - Part 1: Strain-controlled dirECt shear apparatus
    土工试验仪器 剪切仪 第1部分:应变控制式直剪仪
    China National Standards
    EC

    English PDF
    GB/T 21995-2008 Determination of nitroimidazoles in feeds - Liquid chromatography-tandem mass spECtrometry method
    饲料中硝基咪唑类药物的测定 液相色谱 串联质谱法
    China National Standards
    EC

    English PDF
    GB/T 21978.6-2008 Intrument for prECipitation observation - Part 6: Melted snow type rain and snow recorder
    降水量观测仪器 第6部分:融雪型雨雪量计
    China National Standards
    EC

    English PDF
    GB/T 21978.3-2008 Instrument for prECipitation observation - Part 3: Siphon rainfall recorder
    降水量观测仪器 第3部分:虹吸式雨量计
    China National Standards
    EC

    English PDF
    GB/T 21440.2-2008 Instrument for dam monitoring - Settlement gauge - Part 2:ElECtromagnetism type settlement gauge
    大坝监测仪器 沉降仪 第2部分:电磁式沉降仪
    China National Standards
    EC

    English PDF
    GB/T 18673-2008 General tEChnical specifications for machine weaving netting for fisheries
    渔用机织网片
    China National Standards
    EC

    English PDF
    GB/T 17237-2008 The general qualification of tEChnology on livestock animal slaughtering process
    畜类屠宰加工通用技术条件
    China National Standards
    EC

    English PDF
    GB/T 10504-2008 MolECular sieve 3A
    3A分子筛
    China National Standards
    EC

    English PDF
    GB/T 5170.9-2008 InspECtion methods for environmental testing equipments for electric and electronic products - Solar radiation testing equipments
    电工电子产品环境试验设备检验方法 太阳辐射试验设备
    China National Standards
    EC

    English PDF
    GB/T 5170.8-2008 InspECtion methods for environmental testing equipments for electric and electronic products - Salt mist testing equipments
    电工电子产品环境试验设备检验方法 盐雾试验设备
    China National Standards
    EC

    English PDF
    GB/T 5170.5-2008 InspECtion methods for environmental testing equipments for electric and electronic products - Damp heat testing equipments
    电工电子产品环境试验设备检验方法 湿热试验设备
    China National Standards
    EC

    English PDF
    GB/T 5170.2-2008 InspECtion methods for environmental testing equipments for electric and electronic products - Temperature testing equipments
    电工电子产品环境试验设备检验方法 温度试验设备
    China National Standards
    EC

    English PDF
    GB/T 5170.1-2008 InspECtion methods for environmental testing equipments for electric and electronic products - General
    电工电子产品环境试验设备检验方法 总则
    China National Standards
    EC

    English PDF
    GB/T 5170.11-2008 InspECtion methods for environmental testing equipments for electric and electronic products - Corrosive gas testing equipments
    电工电子产品环境试验设备检验方法 腐蚀气体试验设备
    China National Standards
    EC

    English PDF
    GB/T 5170.10-2008 InspECtion methods for environmental testing equipments for electric and electronic products - Combined high and low temperature/low air pressure testing equipments
    电工电子产品环境试验设备检验方法 高低温低气压试验设备
    China National Standards
    EC

    English PDF
    GB/T 2423.48-2008 Environmental testing for elECtric and electronic products - Part 2:Test methods - Test Ff: Vibration- Time-history method
    电工电子产品环境试验 第2部分:试验方法 试验Ff:振动-时间历程法
    China National Standards
    EC

    English PDF
    GB/T 2423.39-2008 Environmental testing for elECtric and electronic products - Part 2: Tests - Test Ee: Bounce
    电工电子产品环境试验 第2部分:试验方法 试验Ee:弹跳
    China National Standards
    EC

    English PDF
    GB/T 2423.38-2008 Environmental testing for elECtric and electronic products - Part 2: Test methods - Test R: Water test method and guidance
    电工电子产品环境试验 第2部分:试验方法 试验R:水试验方法和导则
    China National Standards
    EC

    English PDF
    GB/T 18873-2008 General guide of transmission elECtron microscope (TEM)- X-ray energy dispersive spectrometry(EDS) quantitative microanalysis for thin biological specimens
    生物薄试样的透射电子显微镜-X射线能谱定量分析通则
    China National Standards
    EC

    English PDF
    GB/T 17507-2008 General spECification of thin biological standards for X-ray EDS microanalysis in transmission electron microscope
    透射电子显微镜X射线能谱分析生物薄标样的通用技术条件
    China National Standards
    EC

    English PDF
    GB/T 17360-2008 Quantitative analysis method of low content Si and Mn in steel with elECtron probe microanalysis
    钢中低含量Si、Mn的电子探针定量分析方法
    China National Standards
    EC

    English PDF
    GB 4706.9-2008 Household and similar elECtrical appliances - Safety - Particular requirements for shavers,hair clippers and similar appliances
    家用和类似用途电器的安全 剃须刀、电推剪及类似器具的特殊要求
    China National Standards
    EC

    English PDF
    GB 4706.89-2008 Safety of household and similar elECtrical appliances - Particular requirements for high pressure cleaners and steam cleaners, for industrial and commercial use
    家用和类似用途电器的安全 工业和商用高压清洁器与蒸汽清洁器的特殊要求
    China National Standards
    EC

    English PDF
    GB 4706.88-2008 Safety of household and similar elECtrical appliances - Particular requirements for wet and dry vacuum cleaners,including power brush,for industrial and commercial use
    家用和类似用途电器的安全 工业和商用带动力刷的湿或干吸尘器的特殊要求
    China National Standards
    EC

    English PDF
    GB 4706.87-2008 Safety of household and similar elECtrical appliances - Particular requirements for spray extraction appliances,for industrial and commercial use
    家用和类似用途电器的安全 工业和商用喷雾抽吸器具的特殊要求
    China National Standards
    EC

    English PDF
    GB 4706.86-2008 Safety of household and similar elECtrical appliances - Particular requirements for floor treatment and floor cleaning machines,for industrial and commercial use
    家用和类似用途电器的安全 工业和商用地板处理机与地面清洗机的特殊要求
    China National Standards
    EC

    English PDF
    GB 21966-2008 Safety of primary and sECondary lithium cells and batteries during transport
    锂原电池和蓄电池在运输中的安全要求
    China National Standards
    EC

    English PDF
    GB 16843-2008 Single-capped fluorescent lamps - Safety spECifications
    单端荧光灯的安全要求
    China National Standards
    EC

    English PDF
    GB 14196.3-2008 Incandescent lamps - Safety spECifications - Part 3: Tungsten-halogen lamps (non-vehicle)
    白炽灯 安全要求 第3部分:卤钨灯(非机动车辆用)
    China National Standards
    EC

    English PDF
    GB/T 7095.7-2008 Enamelled rECtangular copper winding wires - Part 7:Polyester enamelled rectangular copper wire, class 130
    漆包铜扁绕组线 第7部分:130级聚酯漆包铜扁线
    China National Standards
    EC

    English PDF
    GB/T 7095.6-2008 Enamelled rECtangular copper winding wires - Part 6: Polyester or polyesterimide overcoated with polyamide-imide enamelled rectangular copper wire, class 200
    漆包铜扁绕组线 第6部分:200级聚酯或聚酯亚胺/聚酰胺酰亚胺复合漆包铜扁线
    China National Standards
    EC

    English PDF
    GB/T 7095.5-2008 Enamelled rECtangular copper winding wires - Part 5:Aromatic polyimide enamelled rectangular copper wire, class 240
    漆包铜扁绕组线 第5部分:240级芳族聚酰亚胺漆包铜扁线
    China National Standards
    EC

    English PDF
    GB/T 7095.4-2008 Enamelled rECtangular copper winding wires - Part 4:Polyesterimide enamelled rectangular copper wire, class 180
    漆包铜扁绕组线 第4部分:180级聚酯亚胺漆包铜扁线
    China National Standards
    EC

    English PDF
    GB/T 7095.3-2008 Enamelled rECtangular copper winding wires - Part 3:Polyester enamelled rectangular copper wire, class 155
    漆包铜扁绕组线 第3部分:155级聚酯漆包铜扁线
    China National Standards
    EC

    English PDF
    GB/T 7095.2-2008 Enamelled rECtangular copper winding wires - Part 2:Polyvinyl acetal enamelled rectangular copper wire,class 120
    漆包铜扁绕组线 第2部分:120级缩醛漆包铜扁线
    China National Standards
    EC

    English PDF
    GB/T 7095.1-2008 Enamelled rECtangular copper winding wires - Part 1:General requirements
    漆包铜扁绕组线 第1部分:一般规定
    China National Standards
    EC

    English PDF
    GB/T 4997-2008 General spECification for permanent magnet low speed direct current tachogenerator
    永磁式低速直流测速发电机通用技术条件
    China National Standards
    EC

    English PDF
    GB/T 21974-2008 TEChnical specification for YZRW range of eddy-current braking wound-rotor three-phase induction motors for crane and metallurgical application
    YZRW系列起重及冶金用涡流制动绕线转子三相异步电动机技术条件
    China National Standards
    EC

    English PDF
    GB/T 21973-2008 TEChnical specification for YZR3 range of wound-rotor three-phase induction motors for crane & metallurgical applications
    YZR3系列起重及冶金用绕线转子三相异步电动机技术条件
    China National Standards
    EC

    English PDF
    GB/T 21972.1-2008 TEChnical specification for variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical application - Part 1:YZP series variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical applicati
    起重及冶金用变频调速三相异步电动机技术条件 第1部分:YZP系列起重及冶金用变频调速三相异步电动机
    China National Standards
    EC

    English PDF
    GB/T 21971-2008 TEChnical specification for YZD range of multi-speed three-phase induction motors for crane application
    YZD系列起重用多速三相异步电动机技术条件
    China National Standards
    EC

    English PDF
    GB/T 21969-2008 TEChnical specification for YGP series variable-frequency adjustable-speed shree-phase induction motors for roll table application
    YGP系列辊道用变频调速三相异步电动机技术条件
    China National Standards
    EC

    English PDF
    GB/T 21968-2008 TEChnical specification for YBZS range of flame-proof double-speed three-phase induction motors for crane application
    YBZS系列起重用隔爆型双速三相异步电动机技术条件
    China National Standards
    EC

    English PDF
    GB/T 21967-2008 YBZE、YBZSE Range three-phase induction motors for crane application flameproof elECtromagnetic braking technical specifications
    YBZE、YBZSE系列起重用隔爆型电磁制动三相异步电动机技术条件
    China National Standards
    EC

    English PDF
    GB/T 14819-2008 General spECification for wound field DC servomotors
    电磁式直流伺服电动机通用技术条件
    China National Standards
    EC

    English PDF
    GB/T 14818-2008 General spECification for DC servomotors with wounded disc armature
    线绕盘式直流伺服电动机通用技术条件
    China National Standards
    EC

    English PDF
    GB/T 14817-2008 General spECification for permanent magnet DC servomotors
    永磁式直流伺服电动机通用技术条件
    China National Standards
    EC

    English PDF
    GB/T 13958-2008 Test procedures for non-dirECt current excitation winding synchronous motor
    无直流励磁绕组同步电动机试验方法
    China National Standards
    EC

    English PDF
    GB/T 13139-2008 General spECification for hysteresis synchronous motors
    磁滞同步电动机通用技术条件
    China National Standards
    EC

    English PDF
    GB/T 12665-2008 Requirements of damp-heat testing of elECtrical machine for service in general environmental condition
    电机在一般环境条件下使用的湿热试验要求
    China National Standards
    EC

    English PDF
    GB/T 12351-2008 Environmental tEChnical requirements of rotating electric machines for tropical use
    热带型旋转电机环境技术要求
    China National Standards
    EC

    English PDF
    GB/T 10401-2008 Permanent magnet dirECt current torque motors,General specification for
    永磁式直流力矩电动机通用技术条件
    China National Standards
    EC

    English PDF
    GB/T 21962-2008 TEChnical requirements for maize combine harvester
    玉米收获机械 技术条件
    China National Standards
    EC

    English PDF
    GB/T 4324.8-2008 Methods for chemical analysis of tungsten - Determination of nickel content - The inductively coupled plasma atomic emission spECtrometry 、 flame atomic absorption spectrometry and dimethylglyoxime gravimetry
    钨化学分析方法 镍量的测定 电感耦合等离子体原子发射光谱法、火焰原子吸收光谱法和丁二酮肟重量法
    China National Standards
    EC

    English PDF
    GB/T 4324.15-2008 Methods for chemical analysis of tungsten - Determination of magnesium content - The flame atomic absorption spECtrometry and inductively coupled plasma atomic emission spectrometry
    钨化学分析方法 镁量的测定 火焰原子吸收光谱法和电感耦合等离子体原子发射光谱法
    China National Standards
    EC

    English PDF
    GB/T 4324.13-2008 Methods for chemical analysis of tungsten - Determination of calcium content - The inductively coupled plasma atomic emission spECtrometry
    钨化学分析方法 钙量的测定 电感耦合等离子体原子发射光谱法
    China National Standards
    EC

    English PDF
    GB/T 21994.5-2008 Chemical analysis of magnesium fluoride - Part 5: Determiantion of calcium content - Method of flame atomic absorption spECtrometry
    氟化镁化学分析方法 第5部分:钙含量的测定 火焰原子吸收光谱法
    China National Standards
    EC

    English PDF
    GB/T 20975.25-2008 Methods for chemical analysis of aluminium and aluminium alloys - Part 25:Inductively coupled plasma atomic emission spECtrometric method
    铝及铝合金化学分析方法 第25部分:电感耦合等离子体原子发射光谱法
    China National Standards
    EC

    English PDF
    GB/T 20255.6-2008 Methods for chemical analysis of hardmetals - Flame atomic absorption spECtrometry - General requirements
    硬质合金化学分析方法 火焰原子吸收光谱法 一般要求
    China National Standards
    EC

    English PDF
    GB/T 12967.1-2008 Test Methods for anodic oxidation coatings of aluminium and aluminium alloys - Part 1:Measurement of mean spECific abrasion resistance of anodic oxidation coatings with an abrasive jet test Apparatus
    铝及铝合金阳极氧化膜检测方法 第1部分:用喷磨试验仪测定阳极氧化膜的平均耐磨性
    China National Standards
    EC

    English PDF
    GB/T 11066.5-2008 Methods for chemical analysis of gold - Determination of silver,copper,iron,lead,antimony and bismuth contents - Atomic emission spECtrometry
    金化学分析方法 银、铜、铁、铅、锑和铋量的测定 原子发射光谱法
    China National Standards
    EC

    English PDF
    GB/T 11066.4-2008 Methods for chemical analysis of gold - Determination of copper, lead and bismuth contents - Flame atomic absorption spECtrometry
    金化学分析方法 铜、铅和铋量的测定 火焰原子吸收光谱法
    China National Standards
    EC

    English PDF
    GB/T 11066.3-2008 Methods for chemical analysis of gold - Determination of iron content - Flame atomic absorption spECtrometry
    金化学分析方法 铁量的测定 火焰原子吸收光谱法
    China National Standards
    EC

    English PDF
    GB/T 11066.2-2008 Methods for chemical analysis of gold - Determination of silver content - Flame atomic absorption spECtrometry
    金化学分析方法 银量的测定 火焰原子吸收光谱法
    China National Standards
    EC

    English PDF
    GB/T 11880-2008 SpECification of large die-blocks used for die-forging hammer and mechanical forging press
    模锻锤和大型机械锻压机用模块技术条件
    China National Standards
    EC

    English PDF

    Find out:21629Items   |  To Page of: First -Previous-Next -Last  | [161] [162] [163] [164] [165] [166] [167]

     

    +86-755-25831330        sales@gbstandards.org 
    106# Zhongmao Mansion,No.1 Beizhan Road,Shenzhen,China
    ©  RJS Copyright  2001-2024 All Rights Reserved

    - Since 2001 -
    Focus on China Standards & Compliance Services

    www.rjs.cn

    China Licenses

    www.transcustoms.com

    China HS code & Tariff

    www.gbstandards.org

    China National Standards