China National Standards

China IV 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 "IV" GB Standards English PDF List:
  • Standard  Code Standard Title Standard Class Order
    GB/T 42383.1-2023 Intelligent Manufacturing Network CollaboratIVe Design Part 1: General Requirements
    智能制造 网络协同设计 第1部分:通用要求
    China National Standards
    IV

    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
    IV

    English PDF
    GB/T 42303-2023 Surfactants - Detergents for fabric washing - Guidelines for comparatIVe performance tests
    表面活性剂 洗织物用洗涤剂 性能比较试验导则
    China National Standards
    IV

    English PDF
    GB/T 42399.3-2023 Non-destructIVe testing instruments - Performance and inspection of phased array ultrasonic equipment - Part 3: Combined systems
    无损检测仪器 相控阵超声设备的性能与检验 第3部分:组合系统
    China National Standards
    IV

    English PDF
    GB/T 42399.2-2023 Non-destructIVe testing instruments - Performance and inspection of phased array ultrasonic equipment - Part 2: Probes
    无损检测仪器 相控阵超声设备的性能与检验 第2部分:探头
    China National Standards
    IV

    English PDF
    GB/T 42399.1-2023 Non-destructIVe testing instruments - Performance and inspection of phased array ultrasonic equipment - Part 1: Instruments
    无损检测仪器 相控阵超声设备的性能与检验 第1部分:仪器
    China National Standards
    IV

    English PDF
    GB/T 42367-2023 Chemical Protozoa ActIVated Sludge Inhibition Test
    化学品 原生动物活性污泥抑制试验
    China National Standards
    IV

    English PDF
    GB/T 42404-2023 Information technology - Telecommunications and information exchange between systems - Local and metropolitan area networks - Timing and synchronization for time-sensitIVe applications in bridging local area networks
    信息技术 系统间远程通信和信息交换 局域网和城域网 桥接局域网用时间敏感应用的定时和同步
    China National Standards
    IV

    English PDF
    GB/T 18090-2023 Diagnostic methods of porcine reproductIVe and respiratory syndrome
    猪繁殖与呼吸综合征诊断方法
    China National Standards
    IV

    English PDF
    GB/T 42322-2023 Energy internet system Interconnection of actIVe distribution network
    能源互联网系统 主动配电网的互联
    China National Standards
    IV

    English PDF
    GB/T 42333-2023 Determination of iodine content in soil and water system sediments Ammonia closed solution-inductIVely coupled plasma mass spectrometry
    土壤、水系沉积物 碘含量的测定 氨水封闭溶解-电感耦合等离子体质谱法
    China National Standards
    IV

    English PDF
    GB 7300.1002-2022 Feed additIVes - Part 10: Flavoring and attractant substances - Allicin
    饲料添加剂 第10部分:调味和诱食物质 大蒜素
    China National Standards
    IV

    English PDF
    GB 7300.902-2022 Feed AdditIVes-Part 9: Colorants β,β-Carotene-4,4-dione (Canthaxanthin)
    饲料添加剂 第9部分:着色剂 β,β-胡萝卜素-4,4-二酮 (斑蝥黄)
    China National Standards
    IV

    English PDF
    GB 6675.11-2014 Toy Safety Part 11: Household Swings, Slides and Similar Indoor and Outdoor ActIVity Toys "No. 1 Amendment"
    玩具安全 第11部分:家用秋千、滑梯及类似用途室内、室外活动玩具《第1号修改单》
    China National Standards
    IV

    English PDF
    GB/T 41672-2022 Surgical Implants OsteoinductIVe Calcium Phosphate Bioceramics
    外科植入物 骨诱导磷酸钙生物陶瓷
    China National Standards
    IV

    English PDF
    GB/T 4207-2022 Method for determination of tracking resistance index and relatIVe tracking index of solid insulating materials
    固体绝缘材料耐电痕化指数和相比电痕化指数的测定方法
    China National Standards
    IV

    English PDF
    GB/T 41628-2022 Cistanche CultIVation Technical Regulations
    肉苁蓉培育技术规程
    China National Standards
    IV

    English PDF
    GB/T 1927.11-2022 Test methods for physical and mechanical properties of small unblemished specimens of wood - Part 11: Determination of compressIVe strength along the grain
    无疵小试样木材物理力学性质试验方法 第11部分:顺纹抗压强度测定
    China National Standards
    IV

    English PDF
    GB/T 41657-2022 Determination of puncture resistance of adhesIVe tape
    胶粘带抗刺穿性能的测定
    China National Standards
    IV

    English PDF
    GB/T 41655-2022 NondestructIVe Testing Ultrasonic Testing Welding, Rolling and Explosive Composite Cladding Testing Technology
    无损检测 超声检测 焊接、轧制和爆炸复合覆层检测技术
    China National Standards
    IV

    English PDF
    GB/T 26610.5-2022 Implementation guidelines for risk-based inspection of pressure equipment systems Part 5: QuantitatIVe analysis methods for failure consequences
    承压设备系统基于风险的检验实施导则 第5部分:失效后果定量分析方法
    China National Standards
    IV

    English PDF
    GB/T 26610.4-2022 Implementation Guidelines for Risk-Based Inspection of Pressure Equipment Systems Part 4: QuantitatIVe Analysis Method of Failure Possibility
    承压设备系统基于风险的检验实施导则 第4部分:失效可能性定量分析方法
    China National Standards
    IV

    English PDF
    GB/T 15022.9-2022 Resin-based reactIVe compounds for electrical insulation - Part 9: Resins for cable accessories
    电气绝缘用树脂基活性复合物 第9部分:电缆附件用树脂
    China National Standards
    IV

    English PDF
    GB/T 29392-2022 LIVestock and poultry meat quality grading Beef
    畜禽肉质量分级 牛肉
    China National Standards
    IV

    English PDF
    GB/T 20551-2022 HACCP Application Code for LIVestock and Poultry Slaughtering
    畜禽屠宰HACCP应用规范
    China National Standards
    IV

    English PDF
    GB/T 7717.16-2022 Acrylonitrile for industrial use - Part 16: Determination of iron and copper content - Graphite furnace atomic absorption spectrometry and inductIVely coupled plasma mass spectrometry
    工业用丙烯腈 第16部分:铁、铜含量的测定 石墨炉原子吸收光谱法和电感耦合等离子体质谱法
    China National Standards
    IV

    English PDF
    GB/T 41654-2022 Corrosion of metals and alloys - Method for metallographic examination of specimens after exposure to high temperature corrosIVe environments
    金属和合金的腐蚀 在高温腐蚀环境下暴露后试样的金相检验方法
    China National Standards
    IV

    English PDF
    GB/T 41508-2022 AdditIVe Manufacturing General Rules Additive Manufacturing Parts Purchasing Requirements
    增材制造 通则 增材制造零件采购要求
    China National Standards
    IV

    English PDF
    GB/T 34112-2022 Information and Documentation Document (ArchIVes) Management System Requirements
    信息与文献 文件(档案)管理体系 要求
    China National Standards
    IV

    English PDF
    GB/T 1927.13-2022 Test methods for physical and mechanical properties of wood with small unblemished specimens - Part 13: Determination of transverse grain compressIVe modulus of elasticity
    无疵小试样木材物理力学性质试验方法 第13部分:横纹抗压弹性模量测定
    China National Standards
    IV

    English PDF
    GB/T 41511-2022 Test method for peel strength of coated abrasIVes
    涂附磨具剥离强度测试方法
    China National Standards
    IV

    English PDF
    GB/T 41507-2022 AdditIVe Manufacturing Terminology Coordinate Systems and Test Methods
    增材制造 术语 坐标系和测试方法
    China National Standards
    IV

    English PDF
    GB/T 19812.6-2022 Plastic water-saving irrigation equipment - Part 6: Polyethylene (PE) pipes for water delIVery
    塑料节水灌溉器材 第6部分:输水用聚乙烯(PE)管材
    China National Standards
    IV

    English PDF
    GB/T 41564-2022 Textiles - QuantitatIVe chemical analysis - Blends of aramid fibers with certain other fibers
    纺织品 定量化学分析 芳香族聚酰胺纤维与某些其他纤维的混合物
    China National Standards
    IV

    English PDF
    GB/T 41606-2022 Barium titanate-based thermosensitIVe ceramics with high electric strength and low resistivity
    钛酸钡基高抗电强度低电阻率热敏陶瓷
    China National Standards
    IV

    English PDF
    GB/T 41526.1-2022 Sports protectIVe gear - Ice and snow sports protective gear - Part 1: Safety requirements and test methods for ski sports helmets
    运动护具 冰雪运动护具 第1部分:滑雪运动头盔的安全要求和试验方法
    China National Standards
    IV

    English PDF
    GB/T 41538-2022 Authenticity test of surface emissIVity remote sensing products
    地表发射率遥感产品真实性检验
    China National Standards
    IV

    English PDF
    GB/T 39545.1-2022 Design and selection of components for enclosed gear drIVes - Part 1: Common components
    闭式齿轮传动装置的零部件设计和选择 第1部分:通用零部件
    China National Standards
    IV

    English PDF
    GB/T 14321-2022 X-ray QuantitatIVe Determination Method of α-Al2O3 Phase in Corundum Abrasive
    刚玉磨料中α-Al2O3相X射线定量测定方法
    China National Standards
    IV

    English PDF
    GB/T 41646-2022 Radiation Protection Instruments. Piggyback radiation detectors for detection of illicit trafficking in radioactIVe material
    辐射防护仪器 用于探测放射性物质非法贩运的背负式辐射探测器
    China National Standards
    IV

    English PDF
    GB/T 21796-2022 Chemicals ActIVated sludge respiration inhibition test
    化学品 活性污泥呼吸抑制试验
    China National Standards
    IV

    English PDF
    GB/T 41668-2022 Chemicals - Determination of release rate of preservatIVe treated wood to the environment
    化学品 防腐处理的木材向环境释放速率的测定方法
    China National Standards
    IV

    English PDF
    GB 23350-2021 Restrictions on ExcessIVe Packaging Requirements for Products Food and Cosmetics
    限制商品过度包装要求 食品和化妆品
    China National Standards
    IV

    English PDF
    GB/T 41568-2022 Terminology of administratIVe affairs
    机关事务管理 术语
    China National Standards
    IV

    English PDF
    GB/T 41435-2022 Determination of boric acid and borate content in toy materials inductIVely coupled plasma mass spectrometry
    玩具材料中硼酸和硼酸盐含量的测定 电感耦合等离子体质谱法
    China National Standards
    IV

    English PDF
    GB/T 41412-2022 Determination of isothiazolinone preservatIVes in toys high performance liquid chromatography tandem mass spectrometry
    玩具中异噻唑啉酮类防腐剂的测定 高效液相色谱-串联质谱法
    China National Standards
    IV

    English PDF
    GB/Z 41476.4-2022 Non destructIVe testing instruments - radiation protection rules for X-ray equipment up to 1mV - Part 4: Calculation of control area
    无损检测仪器 1MV以下X射线设备的辐射防护规则 第4部分:控制区域的计算
    China National Standards
    IV

    English PDF
    GB/Z 41476.3-2022 Non destructIVe testing instruments - radiation protection rules for X-ray equipment below 1mV - Part 3: calculation formulas and charts for radiation protection of X-ray equipment below 450kv
    无损检测仪器 1MV以下X射线设备的辐射防护规则 第3部分:450kV以下X射线设备辐射防护的计算公式和图表
    China National Standards
    IV

    English PDF
    GB/Z 41476.2-2022 Non destructIVe testing instruments - radiation protection rules for X-ray equipment below 1mV - Part 2: technical requirements for protection
    无损检测仪器 1MV以下X射线设备的辐射防护规则 第2部分:防护技术要求
    China National Standards
    IV

    English PDF
    GB/Z 41476.1-2022 Non destructIVe testing instruments - radiation protection rules for X-ray equipment up to 1mV - Part 1: General safety technical requirements
    无损检测仪器 1MV以下X射线设备的辐射防护规则 第1部分:通用安全技术要求
    China National Standards
    IV

    English PDF
    GB/Z 41399-2022 NondestructIVe Testing Instrument Industrial X-ray digital imaging system
    无损检测仪器 工业X射线数字成像系统
    China National Standards
    IV

    English PDF
    GB/Z 41259-2022 Determination of quaternary ammonium salt in preservatIVe wood and wood preservatives by automatic potentiometric titration
    自动电位滴定仪测定防腐木材和木材防腐剂中季铵盐的方法
    China National Standards
    IV

    English PDF
    GB/T 19676-2022 Meat quality grading of lIVestock and poultry
    畜禽肉质量分级 鸡肉
    China National Standards
    IV

    English PDF
    GB/T 7256.1-2022 Navigational aids for cIVil airports - Part 1: General requirements
    民用机场助航灯具 第1部分:一般要求
    China National Standards
    IV

    English PDF
    GB/T 1453-2022 Test method for flat compressIVe properties of sandwich structures or cores
    夹层结构或芯子平压性能试验方法
    China National Standards
    IV

    English PDF
    GB/T 41550-2022 Code for use of depilatory agents for lIVestock and poultry slaughter
    畜禽屠宰用脱毛剂使用规范
    China National Standards
    IV

    English PDF
    GB/T 41548-2022 LIVestock and poultry slaughtering and processing equipment livestock and poultry meat segmentation line
    畜禽屠宰加工设备 畜禽肉分割线
    China National Standards
    IV

    English PDF
    GB/T 41520-2022 Technical specification for investigation of actIVe source seabed seismograph
    主动源海底地震仪调查技术规范
    China National Standards
    IV

    English PDF
    GB/T 41497-2022 Vanadium, iron, vanadium, silicon, phosphorus, manganese, aluminum and iron determination of content wavelength dispersIVe X-ray fluorescence spectrometric method
    钒铁 钒、硅、磷、锰、铝、铁含量的测定 波长色散X射线荧光光谱法
    China National Standards
    IV

    English PDF
    GB/T 41496-2022 Ferroalloys - Determination of moisture in delIVery lots - Gravimetric method
    铁合金 交货批水分的测定 重量法
    China National Standards
    IV

    English PDF
    GB/T 41441.2-2022 Good production environment of large-scale lIVestock and poultry farms Part 2: technical requirements for livestock and poultry houses
    规模化畜禽场良好生产环境 第2部分:畜禽舍技术要求
    China National Standards
    IV

    English PDF
    GB/T 41441.1-2022 Good production environment of large-scale lIVestock and poultry farms Part 1: site requirements
    规模化畜禽场良好生产环境 第1部分:场地要求
    China National Standards
    IV

    English PDF
    GB/T 41418-2022 QuantitatIVe chemical analysis of textiles mixtures of meta aromatic polyamide fibers and para aromatic polyamide fibers (lithium chloride / N, N-Dimethylacetamide method)
    纺织品 定量化学分析 间位芳香族聚酰胺纤维与对位芳香族聚酰胺纤维的混合物(氯化锂/N,N-二甲基乙酰胺法)
    China National Standards
    IV

    English PDF
    GB/T 41417-2022 Textiles -- QuantitatIVe chemical analysis -- mixtures of polyaryloxadiazole fibers and some other fibers
    纺织品 定量化学分析 聚芳噁二唑纤维与某些其他纤维的混合物
    China National Standards
    IV

    English PDF
    GB/T 41394-2022 Functional safety requirements for anti overflow system of storage tank of explosIVe hazardous chemicals
    爆炸危险化学品储罐防溢系统功能安全要求
    China National Standards
    IV

    English PDF
    GB/T 24160-2022 Hoop-wrapped composite cylinders with steel liner for the on-board storage of compressed natural gas as a fuel for automotIVe vehicles
    车用压缩天然气钢质内胆环向缠绕气瓶
    China National Standards
    IV

    English PDF
    GB/T 41375-2022 Specification of construction and service for rural culture actIVity center
    农村文化活动中心建设与服务规范
    China National Standards
    IV

    English PDF
    GB/T 19749.3-2022 Coupling capacitors and capacitor dIViders—Part 3: AC or DC coupling capacitor for harmonic-filters applications
    耦合电容器及电容分压器  第3部分:用于谐波滤波器的交流或直流耦合电容器
    China National Standards
    IV

    English PDF
    GB/T 19749.2-2022 Coupling capacitors and capacitor dIViders—Part 2: DC or AC single-phase coupling capacitor connected between line and ground for power line carrier-frequency (PLC) application
    耦合电容器及电容分压器 第2部分:接于线与地之间用于电力线路载波(PLC)的直流或交流单相耦合电容器
    China National Standards
    IV

    English PDF
    GB/T 21355-2022 Non-destructIVe testing—Industrial computed radiography with storage phosphor imaging plates—Classification of systems
    无损检测  基于存储磷光成像板的工业计算机射线照相检测   系统分类
    China National Standards
    IV

    English PDF
    GB/T 26642-2022 Non-destructIVe testing—Industrial computed radiography with storage phosphor imaging plates—General principles for testing of metallic materials using X-rays and gamma rays
    无损检测 基于存储磷光成像板的工业计算机射线照相检测 金属材料X射线和伽玛射线检测总则
    China National Standards
    IV

    English PDF
    GB/T 23536-2022 SuperabrasIVe—Types of synthetic diamond
    超硬磨料  人造金刚石品种
    China National Standards
    IV

    English PDF
    GB/T 4854.3-2022 Acoustics—Reference zero for the calibration of audiometric equipment—Part 3:Reference equIValent threshold vibratory force levels for pure tones and bone vibrators
    声学 校准测听设备的基准零级 第3部分: 骨振器纯音基准等效阈振动力级
    China National Standards
    IV

    English PDF
    GB/T 12966-2022 The methods for determining aluminium and aluminium alloys conductIVity using eddy current
    铝及铝合金电导率涡流测试方法
    China National Standards
    IV

    English PDF
    GB/T 6609.30-2022 Chemical analysis methods and determination of physical performance of alumina—Part 30: Determination of trace elements—Wavelength dispersIVe X-ray fluorescence spectrometric method
    氧化铝化学分析方法和物理性能测定方法 第30部分:微量元素含量的测定 波长色散X射线荧光光谱法
    China National Standards
    IV

    English PDF
    GB/T 20720.3-2022 Enterprise-control system integration—Part 3: ActIVity models of manufacturing operations management
    企业控制系统集成 第3部分:制造运行管理的活动模型
    China National Standards
    IV

    English PDF
    GB/T 2480-2022 Conventional abrasIVe—Silicon carbide
    普通磨料  碳化硅
    China National Standards
    IV

    English PDF
    GB/T 2478-2022 Conventional abrasIVe—Brown fused alumina
    普通磨料  棕刚玉
    China National Standards
    IV

    English PDF
    GB/T 4584-2022 Specification of actIVe opto-electronic protective devices for presses
    压力机用光电保护装置技术条件
    China National Standards
    IV

    English PDF
    GB/T 3286.11-2022 Methods for chemical analysis of limestone and dolomite—Part 11: Determination of calcium oxide, magnesium oxide, silicon dioxide, aluminium oxide and iron oxide content—Wavelength dispersIVe X-ray fluorescence spectrometry (Fused cast bead method)
    石灰石及白云石化学分析方法 第11部分:氧化钙、氧化镁、二氧化硅、氧化铝及氧化铁含量的测定 波长色散X射线荧光光谱法(熔铸玻璃片法)
    China National Standards
    IV

    English PDF
    GB/T 2479-2022 Conventional abrasIVe—White fused alumina
    普通磨料  白刚玉
    China National Standards
    IV

    English PDF
    GB/T 41369-2022 Quality evaluation of comprehensIVe performance of units operation of small hydropower stations
    小型水电站机组运行综合性能质量评定
    China National Standards
    IV

    English PDF
    GB/T 41356-2022 SuperabrasIVe products - Test method for cutting performance of diamond circular saw blades
    超硬磨料制品  金刚石圆锯片切割性能测试方法
    China National Standards
    IV

    English PDF
    GB/T 41357-2022 SuperabrasIVe Products Vitrified CBN Grinding Wheels for Camshaft and Crankshaft Grinding
    超硬磨料制品  凸轮轴和曲轴磨削用陶瓷结合剂立方氮化硼砂轮
    China National Standards
    IV

    English PDF
    GB/T 41335-2022 Nickel Powder for AdditIVe Manufacturing
    增材制造用镍粉
    China National Standards
    IV

    English PDF
    GB/T 41330-2022 Analysis method of boiler water and cooling water Determination of trace copper, iron, sodium, calcium, magnesium content InductIVely coupled plasma mass spectrometry (ICP-MS) method
    锅炉用水和冷却水分析方法  痕量铜、铁、钠、钙、镁含量的测定  电感耦合等离子体质谱(ICP-MS)法
    China National Standards
    IV

    English PDF
    GB/T 41338-2022 Tungsten and Tungsten Alloy Powder for AdditIVe Manufacturing
    增材制造用钨及钨合金粉
    China National Standards
    IV

    English PDF
    GB/T 41337-2022 Powder Bed Fusion AdditIVe Manufacturing of Nickel-Based Alloys
    粉末床熔融增材制造镍基合金
    China National Standards
    IV

    English PDF
    GB/T 41403-2022 SuperabrasIVe Products Diamond or CBN Abrasives Shapes and Dimensions
    超硬磨料制品  金刚石或立方氮化硼磨具  形状和尺寸
    China National Standards
    IV

    English PDF
    GB/T 41366-2022 LIVestock and poultry meat quality detection Determination of moisture, protein and fat content Near infrared method
    畜禽肉品质检测 水分、蛋白质、脂肪含量的测定 近红外法
    China National Standards
    IV

    English PDF
    GB/T 41263-2022 Industrial Control System Dynamic Reconfiguration ActIVe Defense Architecture Specification
    工控系统动态重构主动防御体系架构规范
    China National Standards
    IV

    English PDF
    GB/T 41300-2022 CIVil UAV Unique Product Identification Code
    民用无人机唯一产品识别码
    China National Standards
    IV

    English PDF
    GB/T 41253-2022 Specification for effectIVeness evaluation of process industry safety monitoring system
    过程工业安全监测系统有效性评估规范
    China National Standards
    IV

    English PDF
    GB/T 41281-2022 Authenticity test of photosynthetically actIVe radiation remote sensing products
    光合有效辐射遥感产品真实性检验
    China National Standards
    IV

    English PDF
    GB/T 17989.7-2022 Statistical method of quality control in production process—Control charts—Part 7: MultIVariate control charts
    生产过程质量控制统计方法 控制图 第7部分:多元控制图
    China National Standards
    IV

    English PDF
    GB/T 33643-2022 Non-destructIVe testing—Test methods for leak detection by means of acoustic emission
    无损检测  声发射泄漏检测方法
    China National Standards
    IV

    English PDF
    GB/T 16886.15-2022 Biological Evaluation of Medical Devices-Part 15: QualitatIVe and Quantitative Degradation Products of Metals and Alloys
    医疗器械生物学评价 第15部分:金属与合金降解产物的定性与定量
    China National Standards
    IV

    English PDF
    GB/T 16886.9-2022 Biological evaluation of medical devices - Part 9: QualitatIVe and quantitative framework for potential degradation products
    医疗器械生物学评价 第9部分:潜在降解产物的定性和定量框架
    China National Standards
    IV

    English PDF
    GB/T 25169-2022 Technical specification for lIVestock and poultry manure monitoring
    畜禽粪便监测技术规范
    China National Standards
    IV

    English PDF
    GB/T 42284.5-2022 Road vehicles - Environmental conditions and tests for electrical and electronic equipment used in electric vehicle drIVe systems - Part 5: Chemical loads
    道路车辆 电动汽车驱动系统用电气及电子设备的环境条件和试验 第5部分:化学负荷
    China National Standards
    IV

    English PDF

    Find out:5905Items   |  To Page of: First -Previous-Next -Last  | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

     

    +86-755-25831330        [email protected] 
    106# Zhongmao Mansion,No.1 Beizhan Road,Shenzhen,China
    ©  RJS Copyright  2001-2025 All Rights Reserved

    - Since 2001 -
    Focus on China Standards & Compliance Services

    www.gbstandards.org

    China National Standards