China National Standards

China Methods 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 "Methods" GB Standards English PDF List:
  • Standard  Code Standard Title Standard Class Order
    GB/T 4324.25-2012 Methods for chemical analysis of tungsten - Part 25: Determination of oxygen content - Pulse heating inert gas fusion-infrared absorption method
    钨化学分析方法 第25部分:氧量的测定 脉冲加热惰气熔融-红外吸收法
    China National Standards
    Methods

    English PDF
    GB/T 4324.24-2012 Methods for chemical analysis of tungsten - Part 24: Determination of phosphorus content - Molybdemum blue photometry
    钨化学分析方法 第24部分:磷量的测定 钼蓝分光光度法
    China National Standards
    Methods

    English PDF
    GB/T 4324.23-2012 Methods for chemical analysis of tungsten - Part 23: Determination of sulfur content - The combustion-conductometric titration and high frequency combustion-infrared absorption method
    钨化学分析方法 第23部分:硫量的测定 燃烧电导法和高频燃烧红外吸收法
    China National Standards
    Methods

    English PDF
    GB/T 4324.22-2012 Methods for chemical analysis of tungsten - Part 22: Determination of manganese content - Inductively coupled plasma atomic emission spectrometry
    钨化学分析方法 第22部分:锰量的测定 电感耦合等离子体原子发射光谱法
    China National Standards
    Methods

    English PDF
    GB/T 4324.2-2012 Methods for chemical analysis of tungsten - Part 2: Determination of bismuth content - Hydrogenate atomic absorption spectrometry
    钨化学分析方法 第2部分:铋量的测定 氢化物原子吸收光谱法
    China National Standards
    Methods

    English PDF
    GB/T 4324.21-2012 Methods for chemical analysis of tungsten - Part 21: Determination of chromium content - Inductively coupled plasma atomic emission spectrometry
    钨化学分析方法 第21部分:铬量的测定 电感耦合等离子体原子发射光谱法
    China National Standards
    Methods

    English PDF
    GB/T 4324.20-2012 Methods for chemical analysis of tungsten - Part 20: Determination of vanadium content - Inductively coupled plasma atomic emission spectrometry
    钨化学分析方法 第20部分:钒量的测定 电感耦合等离子体原子发射光谱法
    China National Standards
    Methods

    English PDF
    GB/T 4324.19-2012 Methods for chemical analysis of tungsten - Part 19: Determination of titanium content - The diantipyrylmethane photometric spectrophtometry
    钨化学分析方法 第19部分:钛量的测定 二安替比林甲烷分光光度法
    China National Standards
    Methods

    English PDF
    GB/T 4324.18-2012 Methods for chemical analysis of tungsten - Part 18: Determination of potassium content - Flame atomic absorption spectrometry
    钨化学分析方法 第18部分:钾量的测定 火焰原子吸收光谱法
    China National Standards
    Methods

    English PDF
    GB/T 4324.17-2012 Methods for chemical analysis of tungsten - Part 17: Determination of sodium content - Flame atomic absorption spectrometry
    钨化学分析方法 第17部分:钠量的测定 火焰原子吸收光谱法
    China National Standards
    Methods

    English PDF
    GB/T 4324.16-2012 Methods for chemical analysis of tungsten - Part 16: Determination of loss content on ignition - Gravimetric method
    钨化学分析方法 第16部分:灼烧损失量的测定 重量法
    China National Standards
    Methods

    English PDF
    GB/T 4324.14-2012 Methods for chemical analysis of tungsten - Part 14: Determination of residue content after chloride volatility - Gravimetric method
    钨化学分析方法 第14部分:氯化挥发后残渣量的测定 重量法
    China National Standards
    Methods

    English PDF
    GB/T 4324.12-2012 Methods for chemical analysis of tungsten - Part 12: Determination of silicon content - Chlorization-molybdenum blue spectrophotometry
    钨化学分析方法 第12部分:硅量的测定 氯化-钼蓝分光光度法
    China National Standards
    Methods

    English PDF
    GB/T 4324.1-2012 Methods for chemical analysis of tungsten - Part 1: Determination of lead content - Flame atomic absorption spectrometry
    钨化学分析方法 第1部分:铅量的测定 火焰原子吸收光谱法
    China National Standards
    Methods

    English PDF
    GB/T 4324.11-2012 Methods for chemical analysis of tungsten - Part 11: Determination of aluminum content - Inductively coupled plasma atomic emission spectrometry
    钨化学分析方法 第11部分:铝量的测定 电感耦合等离子体原子发射光谱法
    China National Standards
    Methods

    English PDF
    GB/T 4324.10-2012 Methods for chemical analysis of tungsten - Part 10: Determination of copper content - Flame atomic absorption spectrometry
    钨化学分析方法 第10部分:铜量的测定 火焰原子吸收光谱法
    China National Standards
    Methods

    English PDF
    GB/T 4103.9-2012 Methods for chemical analysis of lead and lead alloys - Part 9: Determination of calcium content
    铅及铅合金化学分析方法 第9部分:钙量的测定
    China National Standards
    Methods

    English PDF
    GB/T 4103.8-2012 Methods for chemical analysis of lead and lead alloys - Part 8: Determination of tellurium content
    铅及铅合金化学分析方法 第8部分:碲量的测定
    China National Standards
    Methods

    English PDF
    GB/T 4103.7-2012 Methods for chemical analysis of lead and lead alloys - Part 7: Determination of selenium content
    铅及铅合金化学分析方法 第7部分:硒量的测定
    China National Standards
    Methods

    English PDF
    GB/T 4103.6-2012 Methods for chemical analysis of lead and lead alloys - Part 6: Determination of arsenic content
    铅及铅合金化学分析方法 第6部分:砷量的测定
    China National Standards
    Methods

    English PDF
    GB/T 4103.5-2012 Methods for chemical analysis of lead and lead alloys - Part 5: Determination of bismuth content
    铅及铅合金化学分析方法 第5部分:铋量的测定
    China National Standards
    Methods

    English PDF
    GB/T 4103.4-2012 Methods for chemical analysis of lead and lead alloys - Part 4: Determination of iron content
    铅及铅合金化学分析方法 第4部分:铁量的测定
    China National Standards
    Methods

    English PDF
    GB/T 4103.3-2012 Methods for chemical analysis of lead and lead alloys - Part 3: Determination of copper content
    铅及铅合金化学分析方法 第3部分:铜量的测定
    China National Standards
    Methods

    English PDF
    GB/T 4103.2-2012 Methods for chemical analysis of lead and lead alloys - Part 2: Determination of antimony content
    铅及铅合金化学分析方法 第2部分:锑量的测定
    China National Standards
    Methods

    English PDF
    GB/T 4103.13-2012 Methods for chemical analysis of lead and lead alloys - Part 13: Determination of aluminium content
    铅及铅合金化学分析方法 第13部分:铝量的测定
    China National Standards
    Methods

    English PDF
    GB/T 4103.12-2012 Methods for chemical analysis of lead and lead alloys - Part 12: Determination of thallium content
    铅及铅合金化学分析方法 第12部分:铊量的测定
    China National Standards
    Methods

    English PDF
    GB/T 4103.1-2012 Methods for chemical analysis of lead and lead alloys - Part 1: Determination of tin content
    铅及铅合金化学分析方法 第1部分:锡量的测定
    China National Standards
    Methods

    English PDF
    GB/T 4103.11-2012 Methods for chemical analysis of lead and lead alloys - Part 11: Determination of zinc content
    铅及铅合金化学分析方法 第11部分:锌量的测定
    China National Standards
    Methods

    English PDF
    GB/T 4103.10-2012 Methods for chemical analysis of lead and lead alloys - Part 10: Determination of silver content
    铅及铅合金化学分析方法 第10部分:银量的测定
    China National Standards
    Methods

    English PDF
    GB/T 3884.9-2012 Methods for chemical analysis of copper concentrates - Part 9: Determination of arsenic and bismuth contents - Hydride generation- atomic fluorescence spectrometry method The potassium bromate titration method and The silver diethyl dithiocarbamate photom
    铜精矿化学分析方法 第9部分:砷和铋量的测定 氢化物发生-原子荧光光谱法、溴酸钾滴定法和二乙基二硫代氨基甲酸银分光光度法
    China National Standards
    Methods

    English PDF
    GB/T 3884.8-2012 Methods for chemical analysis of copper concentrates - Part 8: Determination of zinc content - Na2EDTA titration method
    铜精矿化学分析方法 第8部分:锌量的测定 Na2EDTA滴定法
    China National Standards
    Methods

    English PDF
    GB/T 3884.7-2012 Methods for chemical analysis of copper concentrates - Part 7: Determination of lead content - Na2EDTA titration method
    铜精矿化学分析方法 第7部分:铅量的测定 Na2EDTA滴定法
    China National Standards
    Methods

    English PDF
    GB/T 3884.6-2012 Methods for chemical analysis of copper concentrates - Part 6: Determination of lead,zinc,cadmium and nickel content - Flame atomic absorption spectrometry method
    铜精矿化学分析方法 第6部分:铅、锌、镉和镍量的测定 火焰原子吸收光谱法
    China National Standards
    Methods

    English PDF
    GB/T 3884.5-2012 Methods for chemical analysis of copper concentrates - Part 5: Determination of fluoride content - Ion selective electrode method
    铜精矿化学分析方法 第5部分:氟量的测定 离子选择电极法
    China National Standards
    Methods

    English PDF
    GB/T 3884.4-2012 Methods for chemical analysis of copper concentrates - Part 4: Determination of magnesium oxide content - Flame atomic absorption spectrophotometry method
    铜精矿化学分析方法 第4部分:氧化镁量的测定 火焰原子吸收光谱法
    China National Standards
    Methods

    English PDF
    GB/T 3884.3-2012 Methods for chemical analysis of copper concentrates - Part 3: Determination of sulfur content - Gravimetric method and Combustion-titration method
    铜精矿化学分析方法 第3部分:硫量的测定 重量法和燃烧-滴定法
    China National Standards
    Methods

    English PDF
    GB/T 3884.2-2012 Methods for chemical analysis of copper concentrates - Part 2: Determination of gold and silver contents - Flame atomic absorption spectrmetric method and fire assay method
    铜精矿化学分析方法 第2部分:金和银量的测定 火焰原子吸收光谱法和火试金法
    China National Standards
    Methods

    English PDF
    GB/T 3884.14-2012 Methods for chemical analysis of copper concentrates - Part 14: Determination of gold and silver - Fire assay gravimetric and flame atomic absorption spectrometric method
    铜精矿化学分析方法 第14部分:金和银量测定 火试金重量法和原子吸收光谱法
    China National Standards
    Methods

    English PDF
    GB/T 3884.13-2012 Methods for chemical analysis of copper concentrates - Part 13: Determination of copper - Electrogravimetric method
    铜精矿化学分析方法 第13部分:铜量测定 电解法
    China National Standards
    Methods

    English PDF
    GB/T 3884.1-2012 Methods for chemical analysis of copper concentrates - Part 1: Determination of copper content - Iodine titration method
    铜精矿化学分析方法 第1部分:铜量的测定 碘量法
    China National Standards
    Methods

    English PDF
    GB/T 3884.10-2012 Methods for chemical analysis of copper concentrstes - Part 10: Determination of Antimony content - Hydride generation atomic fluorescence spectrometry method
    铜精矿化学分析方法 第10部分:锑量的测定 氢化物发生-原子荧光光谱法
    China National Standards
    Methods

    English PDF
    GB/T 29180.2-2012 The investigative Methods and procedures for electrical fire - Part 2:Methods for dissolution and separation of physical evidence
    电气火灾勘验方法和程序 第2部分:物证的溶解分离提取方法
    China National Standards
    Methods

    English PDF
    GB/T 29160-2012 Test Methods for solar-plus-supplementary water heating system (tank capacity more than 0.6m3)
    带辅助能源的太阳能热水系统(储水箱容积大于0.6m3)性能试验方法
    China National Standards
    Methods

    English PDF
    GB/T 29036-2012 Coloring of stainless steel by Oxidation - Specification and test Methods
    不锈钢表面氧化着色 技术规范和试验方法
    China National Standards
    Methods

    English PDF
    GB/T 29024.3-2012 Determination of particle size distribution - Single particle light interaction Methods - Part 3: Light extinction liquid-borne particle counter
    粒度分析 单颗粒的光学测量方法:第3部分:液体颗粒计数器光阻法
    China National Standards
    Methods

    English PDF
    GB/T 29023.1-2012 Measurement and characterization of particles by acoustic Methods - Part 1: Concepts and procedures in ultrasonic attenuation spectroscopy
    超声法颗粒测量与表征 第1部分:超声衰减谱法的概念和过程
    China National Standards
    Methods

    English PDF
    GB/T 17432-2012 Methods of sampling for analyzing the chemical composition of wrought aluminum and aluminum alloys
    变形铝及铝合金化学成分分析取样方法
    China National Standards
    Methods

    English PDF
    GB/T 16840.6-2012 Technical determination Methods for electrical fire evidence - Part 6:Micro-morphological analysis method using scanning electron microscope
    电气火灾痕迹物证技术鉴定方法 第6部分:SEM微观形貌分析法
    China National Standards
    Methods

    English PDF
    GB/T 16840.5-2012 Technical determination Methods for electrical fire evidence - Part 5: Method of recognizing and collecting the physical evidence of electrical fire
    电气火灾痕迹物证技术鉴定方法 第5部分:电气火灾物证识别和提取方法
    China National Standards
    Methods

    English PDF
    GB/T 29295-2012 Test Methods of performance of self-ballasted LED reflector lamps
    反射型自镇流LED灯性能测试方法
    China National Standards
    Methods

    English PDF
    GB/T 29293-2012 Measurement Methods of the performance for LED downlights
    LED筒灯性能测量方法
    China National Standards
    Methods

    English PDF
    GB/T 29291-2012 Button general technical requirements and testing Methods - Zinc alloy buttons
    钮扣通用技术要求和检测方法 锌合金类
    China National Standards
    Methods

    English PDF
    GB/T 29290-2012 Button general technical requirements and testing Methods - Unsaturated polyester resin buttons
    钮扣通用技术要求和检测方法 不饱和聚酯树脂类
    China National Standards
    Methods

    English PDF
    GB/T 29046-2012 Test Methods of technical specification for pre-insulated directly buried district heating pipes
    城镇供热预制直埋保温管道技术指标检测方法
    China National Standards
    Methods

    English PDF
    GB/T 29041-2012 Road wear testing Methods for motor vehicle tyres
    汽车轮胎道路磨耗试验方法
    China National Standards
    Methods

    English PDF
    GB/T 29040-2012 Test Methods of rolling resistance for motor vehicle tyres - Single point test and correlation of measurement results
    汽车轮胎滚动阻力试验方法 单点试验和测量结果的相关性
    China National Standards
    Methods

    English PDF
    GB/T 2542-2012 Test Methods for wall bricks
    砌墙砖试验方法
    China National Standards
    Methods

    English PDF
    GB/T 18861-2012 Test Methods of rolling resistance for motor vehicle tyres and motorcycle tyres - Multi-point test
    汽车轮胎和摩托车轮胎滚动阻力试验方法 多点试验
    China National Standards
    Methods

    English PDF
    GB/T 8077-2012 Methods for testing uniformity of concrete admixture
    混凝土外加剂匀质性试验方法
    China National Standards
    Methods

    English PDF
    GB/T 5762-2012 Methods for chemical analysis of limestone,quicklime and hydrated lime for building materials industry
    建材用石灰石、生石灰和熟石灰化学分析方法
    China National Standards
    Methods

    English PDF
    GB/T 5484-2012 Methods for chemical analysis of gypsum
    石膏化学分析方法
    China National Standards
    Methods

    English PDF
    GB/T 29422-2012 Methods for dealing with the waste solution of chemical analysis of cement
    水泥化学分析废液的处理方法
    China National Standards
    Methods

    English PDF
    GB/T 29418-2012 Test Methods for mechannical and physical properties of wood-plastic composite product
    塑木复合材料产品物理力学性能测试
    China National Standards
    Methods

    English PDF
    GB/T 29417-2012 Standard test Methods for drying shrinkage stress and cracking possibility of cement mortar and concrete
    水泥砂浆和混凝土干燥收缩开裂性能试验方法
    China National Standards
    Methods

    English PDF
    GB/T 1864-2012 General Methods of test for pigments and extenders - Comparison of colour of pigments
    颜料和体质颜料通用试验方法 颜料颜色的比较
    China National Standards
    Methods

    English PDF
    GB/T 15344-2012 Methods for physical test of talc
    滑石物理检验方法
    China National Standards
    Methods

    English PDF
    GB/T 15343-2012 Methods for chemical analysis of talc
    滑石化学分析方法
    China National Standards
    Methods

    English PDF
    GB/Z 29014-2012 Cutting tool data representation and exchange - Definitions, principles and Methods for reference dictionaries
    切削刀具数据表达与交换 参考字典的定义、原则和方法
    China National Standards
    Methods

    English PDF
    GB/T 29459.2-2012 Small punch test Methods of metallic materials for in-service pressure equipments - Part 2:Method of test for tensile properties at room temperature
    在役承压设备金属材料小冲杆试验方法 第2部分:室温下拉伸性能的试验方法
    China National Standards
    Methods

    English PDF
    GB/T 29459.1-2012 Small punch test Methods of metallic materials for in-service pressure equipments - Part 1:General requirements
    在役承压设备金属材料小冲杆试验方法 第1部分:总则
    China National Standards
    Methods

    English PDF
    GB/T 29167-2012 Petroleum and natural gas industries - Pipeline transportation systems - Reliability-based limit state Methods
    石油天然气工业 管道输送系统 基于可靠性的极限状态方法
    China National Standards
    Methods

    English PDF
    GB/T 29125-2012 Test Methods for fuel consumption of CNG vehicles
    压缩天然气汽车燃料消耗量试验方法
    China National Standards
    Methods

    English PDF
    GB/T 29006-2012 Agricultural oil press - Evaluation index and measurement Methods for electrical energy consumption
    农用榨油机 耗电量指标及测量方法
    China National Standards
    Methods

    English PDF
    GB/T 29005-2012 The combined rice mill - Evaluation index and measurement Methods for electrical energy consumption
    组合米机 耗电量指标及测量方法
    China National Standards
    Methods

    English PDF
    GB/T 29004-2012 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
    Methods

    English PDF
    GB/T 29003-2012 Head-feed combine harvester - Evaluation index and measurement Methods for fuel consumption
    半喂入联合收割机 燃油消耗量指标及测量方法
    China National Standards
    Methods

    English PDF
    GB/T 29002-2012 Whole-feed combine harvester - Evaluation index and measurement Methods for fuel consumption
    全喂入联合收割机 燃油消耗量指标及测量方法
    China National Standards
    Methods

    English PDF
    GB/T 28958-2012 Test Methods of low temperature performance for passenger car
    乘用车低温性能试验方法
    China National Standards
    Methods

    English PDF
    GB/T 27411-2012 Routine Methods for evaluation and expression of measurement uncertainty in testing laboratory
    检测实验室中常用不确定度评定方法与表示
    China National Standards
    Methods

    English PDF
    GB/T 18687-2012 Agricultural irrigation equipment - Sprayers - General requirements and test Methods
    农业灌溉设备 非旋转式喷头 技术要求和试验方法
    China National Standards
    Methods

    English PDF
    GB/T 19794-2012 Agricultural irrigation equipment - Volumetric valves - General requirements and test Methods
    农业灌溉设备 定量阀 技术要求和试验方法
    China National Standards
    Methods

    English PDF
    GB 13837-2012 Sound and television broadcast receivers and associated equipment - Radio disturbance characteristics - Limits and Methods of measurement
    声音和电视广播接收机及有关设备 无线电骚扰特性 限值和测量方法
    China National Standards
    Methods

    English PDF
    GB/T 9633-2012 Measuring Methods for properties of gyromagnetic materials intended for application at microwave frequencies
    微波频率应用的旋磁材料性能测量方法
    China National Standards
    Methods

    English PDF
    GB/T 7196-2012 Methods of test for the determination of ionic impurities in electrical insulating materials by extraction with liquids
    用液体萃取测定电气绝缘材料离子杂质的试验方法
    China National Standards
    Methods

    English PDF
    GB/T 6495.10-2012 Photovoltaic devices - Part 10:Methods of linearity measurement
    光伏器件 第10部分:线性特性测量方法
    China National Standards
    Methods

    English PDF
    GB/T 29365-2012 Wood-Plastic Composite (WPC) - Test Methods of artificial weathering
    塑木复合材料 人工气候老化试验方法
    China National Standards
    Methods

    English PDF
    GB/T 29307-2012 The reliability test Methods of drive motor system for electric vehicles
    电动汽车用驱动电机系统可靠性试验方法
    China National Standards
    Methods

    English PDF
    GB/T 29306.2-2012 Recommended Methods for the determination of the dielectric properties of insulating materials at frequencies above 300 MHz - Part 2 : Resonance methods
    绝缘材料在300 MHz以上频率下介电性能测定方法 第2部分:谐振法
    China National Standards
    Methods

    English PDF
    GB/T 29306.1-2012 Recommended Methods for the determination of the dielectric properties of insulating materials at frequencies above 300 MHz - Part 1:General
    绝缘材料在300 MHz以上频率下介电性能测定方法 第1部分:总则
    China National Standards
    Methods

    English PDF
    GB/T 29272-2012 Information technology - Radio frequency identification device performance test Methods - Test methods for system performance
    信息技术 射频识别设备性能测试方法 系统性能测试方法
    China National Standards
    Methods

    English PDF
    GB/T 29256.6-2012 Textiles - Woven fabrics - Construction - Methods of analysis - Part 6: Determination of the mass of warp and weft per unit area of fabric
    纺织品 机织物结构分析方法 第6部分:织物单位面积经纬纱线质量的测定
    China National Standards
    Methods

    English PDF
    GB/T 29256.5-2012 Textiles - Woven fabrics - Construction - Methods of analysis - Part 5: Determination of linear density of yarn removed from fabric
    纺织品 机织物结构分析方法 第5部分:织物中拆下纱线线密度的测定
    China National Standards
    Methods

    English PDF
    GB/T 29256.4-2012 Textiles - Woven fabrics - Construction - Methods of analysis - Part 4: Determination of twist in yarn removed from fabric
    纺织品 机织物结构分析方法 第4部分:织物中拆下纱线捻度的测定
    China National Standards
    Methods

    English PDF
    GB/T 29256.3-2012 Textiles - Woven fabrics - Construction - Methods of analysis - Part 3: Determination of crimp of yarn in fabric
    纺织品 机织物结构分析方法 第3部分:织物中纱线织缩的测定
    China National Standards
    Methods

    English PDF
    GB/T 29256.1-2012 Textiles - Woven fabrics - Construction - Methods of analysis - Part 1: Methods for the presentation of a weave diagram and plans for drafting, denting and lifting
    纺织品 机织物结构分析方法 第1部分:织物组织图与穿综、穿筘及提综图的表示方法
    China National Standards
    Methods

    English PDF
    GB/T 29247-2012 General Methods for testing the performance of industrial process measurement and control instruments
    工业自动化仪表通用试验方法
    China National Standards
    Methods

    English PDF
    GB/T 29235.2-2012 Energy efficiency metrologies and test Methods for access equipments - Part 2: ADSL DSLAM
    接入设备节能参数和测试方法 第2部分:ADSL局端
    China National Standards
    Methods

    English PDF
    GB/T 29235.1-2012 Energy efficiency metrology and test Methods for access equipments - Part 1:ADSL CPE
    接入设备节能参数和测试方法 第1部分:ADSL用户端
    China National Standards
    Methods

    English PDF
    GB/T 29199-2012 Test Methods for rodent resistance of optical fiber cable
    光缆防鼠性能测试方法
    China National Standards
    Methods

    English PDF
    GB/T 29190-2012 Measurement Methods of drift rate of scanning probe microscope
    扫描探针显微镜漂移速率测量方法
    China National Standards
    Methods

    English PDF

    Find out:4920Items   |  To Page of: First -Previous-Next -Last  | [18] [19] [20] [21] [22] [23] [24]

     

    +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