China National Standards

China X 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 "X" GB Standards English PDF List:
  • Standard  Code Standard Title Standard Class Order
    GB/T 5009.119-2003 Determination of diaminomethylbezen of compleX for food packaging material
    复合食品包装袋中二氨基甲苯的测定
    China National Standards
    X

    English PDF
    GB/T 5009.116-2003 Determination of oXytetracyline,tetracyline and chlortetracycline residues in meat(HPLC)
    畜禽肉中土霉素、四环素、金霉素残留量的测定(高效液相色谱法)
    China National Standards
    X

    English PDF
    GB/T 5009.111-2003 Determination of deoXynivalenolin cereal and cereal products
    谷物及其制品中脱氧雪腐镰刀菌烯醇的测定
    China National Standards
    X

    English PDF
    GB/T 5009.102-2003 Determination of phoXim pesticide residues in vegetable foods
    植物性食品中辛硫磷农药残留量的测定
    China National Standards
    X

    English PDF
    GB/T 4789.6-2003 Microbiological eXaminationof food hygiene--Examination of diarrheogenic Escherichia coli
    食品卫生微生物学检验 致泻大肠埃希氏菌检验
    China National Standards
    X

    English PDF
    GB/T 4789.29-2003 Microbiological eXamination of food hygiene--Examination of Pseudomonas cocovenenans subsp. farinofermentans
    食品卫生微生物学检验 椰毒假单胞菌酵米面亚种检验
    China National Standards
    X

    English PDF
    GB/T 4789.25-2003 Microbiological eXamination of food hygiene--Examination of wines
    食品卫生微生物学检验 酒类检验
    China National Standards
    X

    English PDF
    GB/T 4789.24-2003 Microbiological eXaminationof food hygiene--Examination of candy,cake and preserved fruits
    食品卫生微生物学检验 糖果、糕点、蜜饯检验
    China National Standards
    X

    English PDF
    GB/T 4789.23-2003 Microbiological eXamination of food hygiene--Examination of cold dish and bean products
    食品卫生微生物学检验 冷食菜、豆制品检验
    China National Standards
    X

    English PDF
    GB/T 4789.22-2003 Microbiological eXamination of food hygiene--Examination of flavourings
    食品卫生微生物学检验 调味品检验
    China National Standards
    X

    English PDF
    GB/T 4789.21-2003 Microbiological eXamination of food hygiene--Examination of frozen drinks and cold drinks
    食品卫生微生物学检验 冷冻饮品、饮料检验
    China National Standards
    X

    English PDF
    GB/T 4789.20-2003 Microbiological eXamination of foodhygiene--Examination of aquatic product foods
    食品卫生微生物学检验 水产食品检验
    China National Standards
    X

    English PDF
    GB/T 4789.19-2003 Microbiological eXamination of food hygiene--Examination of egg and egg products
    食品卫生微生物学检验 蛋与蛋制品检验
    China National Standards
    X

    English PDF
    GB/T 4789.17-2003 Microbiological eXamination of food hygiene--Examination of meat and meat products
    食品卫生微生物学检验 肉与肉制品检验
    China National Standards
    X

    English PDF
    GB/T 4789.16-2003 Microbiological eXamination of food hygiene--Identification of common mycotoxin producing fungi
    食品卫生微生物学检验 常见产毒霉菌的鉴定
    China National Standards
    X

    English PDF
    GB/T 4789.12-2003 Microbiological eXamination of food hygiene--Examination of Clostridium botulinum and botulinus toxin
    食品卫生微生物学检验 肉毒梭菌及肉毒毒素检验
    China National Standards
    X

    English PDF
    GB/T 5009.197-2003 Determination of thiamine hydrochloride,pyridoXine hydrochloride,niacin,niacinamide and caffeine in health foods
    保健食品中盐酸硫胺素、盐酸吡哆醇、烟酸、烟酰胺和咖啡因的测定
    China National Standards
    X

    English PDF
    GB/T 5009.180-2003 Determination of oXadiazon residues in cereals and peanuts
    稻谷、花生仁中恶草酮残留量的测定
    China National Standards
    X

    English PDF
    GB/T 755.2-2003 Methods for determininglosses and efficiency of rotating electrical machinery from tests(eXcluding machines for traction vehicles)
    旋转电机(牵引电机除外)确定损耗和效率的试验方法
    China National Standards
    X

    English PDF
    GB/T 2261.1-2003 Classification and codesof basic personal information--Part 1: Codes for seXual distinction of human
    个人基本信息分类与代码 第1部分:人的性别代码
    China National Standards
    X

    English PDF
    GB/T 19256.1-2003 Electronic business XML--Part1: Technical architecture
    基于XML的电子商务 第1部分:技术体系结构
    China National Standards
    X

    English PDF
    GB/T 11685-2003 Measurement procedures for semiconductor X-ray detector system and semiconductor X-ray energyspectrometers
    半导体X射线探测器系统和半导体X射线能谱仪的测量方法
    China National Standards
    X

    English PDF
    GB/T 5211.2-2003 Determination of matter soluble in water of pigments--Hot eXtraction method
    颜料水溶物测定 热萃取法
    China National Standards
    X

    English PDF
    GB/T 5211.1-2003 Determination of matter soluble in water of pigments--Cold eXtraction method
    颜料水溶物测定 冷萃取法
    China National Standards
    X

    English PDF
    GB/T 18237.4-2003 Information technology--Open systems interconnection--Generic upper layers security--Part 4: Protecting transfer syntaX specification
    信息技术 开放系统互连 通用高层安全 第4部分: 保护传送语法规范
    China National Standards
    X

    English PDF
    GB/T 12538-2003 Road vehicles with two aXles--Determination of centre of gravity
    两轴道路车辆 重心位置的测定
    China National Standards
    X

    English PDF
    GB/T 19224-2003 Determining the relative degree of oXidation inbituminous coal
    烟煤相对氧化度测定方法
    China National Standards
    X

    English PDF
    GB 12664-2003 General specification for portable X-ray security inspection equipment
    便携式X射线安全检查设备通用规范
    China National Standards
    X

    English PDF
    GB/T 17006.9-2003 Evaluation and routine testing in medical imaging departments--Part 2-10: Constancy tests--X-ray equipment for mammography
    医用成像部门的评价及例行试验 第2-10部分:稳定性试验 乳腺X射线摄影设备
    China National Standards
    X

    English PDF
    GB/T 17006.7-2003 Evaluation and routine testing in medical imaging departments--Part 2-7: Constancy tests--Equipment for intra-oral dental radiography eXcluding dental panoramic equipment
    医用成像部门的评价及例行试验 第2-7部分: 稳定性试验 口内牙科X射线摄影设备不包括牙科全景设备
    China National Standards
    X

    English PDF
    GB 9706.22-2003 Medical electricalequipment--Part 2: Particular requirements for the safety of equipment for eXtracorporeally induced lithotripsy
    医用电气设备 第2部分: 体外引发碎石设备安全专用要求
    China National Standards
    X

    English PDF
    GB/T 15329.1-2003 Rubber hosesand hose assemblies--TeXtile-reinforced hydraulic types--Specification--Part 1: Oil-based fluid applications
    橡胶软管及软管组合件 织物增强液压型 第1部分:油基流体用
    China National Standards
    X

    English PDF
    GB/T 19209.2-2003 EXamine general rule of repair quality for tractor--Part 2: Caterpillar tractor
    拖拉机修理质量检验通则 第2部分: 履带拖拉机
    China National Standards
    X

    English PDF
    GB/T 19209.1-2003 EXamine general rule of repair quality for tractor--Part 1: Wheeled tractor
    拖拉机修理质量检验通则 第1部分:轮式拖拉机
    China National Standards
    X

    English PDF
    GB/T 19178-2003 Testing rules for parent eggs of silkworm (BombyX mori)
    桑蚕原种检验规程
    China National Standards
    X

    English PDF
    GB 19179-2003 Parent eggs of silkworm(BombyX mori)
    桑蚕原种
    China National Standards
    X

    English PDF
    GB 19149-2003 Transformers for tubular discharge lamps having a no-load output voltage eXceeding 1000V(generally called neon-transformers)--General and safety requirements
    空载输出电压超过1000V的管形放电灯用变压器(霓虹灯变压器)的一般要求和安全要求
    China National Standards
    X

    English PDF
    GB 16915.4-2003 Switches for household and similar fiXed-electrical installations--Part 2:Particular requirements--Section 3: Time-delay switches(TDS)
    家用和类似用途固定式电气装置的开关 第2部分: 特殊要求 第3节: 延时开关
    China National Standards
    X

    English PDF
    GB 1094.3-2003 Power transformers--Part 3: Insulation levels,dielectric tests and eXternal clearances in air
    电力变压器 第3部分: 绝缘水平、绝缘试验和外绝缘空气间隙
    China National Standards
    X

    English PDF
    GB/T 19143-2003 Analytical method of element for carbon,hydrogen and oXygen in rock organics
    岩石有机质中碳、氢、氧元素分析方法
    China National Standards
    X

    English PDF
    GB 19105-2003 Requirements of packing for peroXyacetic acid
    过氧乙酸包装要求
    China National Standards
    X

    English PDF
    GB 15629.11-2003 Information technology--Telecommunications and information eXchange between systems--Local and metropolitan area networks--Specific requirements--Part 11: Wireless LAN Medium Access Control (MAC) andPhysical Layer(PHY) Specifications
    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 第11部分:无线局域网媒体访问控制和物理层规范
    China National Standards
    X

    English PDF
    GB 15629.1102-2003 Information technology--Telecommunications and information eXchange between systems--Local and metropolitan area networks--Specific requirements--Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer(PHY) Specifications: Higher-Speed Physi
    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 第11部分:无线局域网媒体访问控制和物理层规范:2.4 GHz频段较高速物理层扩展规范
    China National Standards
    X

    English PDF
    GB/T 16656.49-2003 Industrial automation systems and integration--Product data representation and eXchange--Part 49: Integrated generic resource: Process structure and properties
    工业自动化系统与集成产品数据表达与交换 第49部分: 集成通用资源: 工艺过程结构和特性
    China National Standards
    X

    English PDF
    GB/Z 19091.1-2003 Definitions and attributes of data elements for control and monitoring of teXtile processes--Part 1: Spinning,spinning preparatory and related processes
    纺织工艺监控用数据元素的定义和属性 第1部分:纺、纺前准备及相关工艺
    China National Standards
    X

    English PDF
    GB/T 6285-2003 Determination of trace oXygen in gases--Eletrochemical method
    气体中微量氧的测定 电化学法
    China National Standards
    X

    English PDF
    GB/T 19090-2003 Rubber hoses and hose assemblies for underground mining--TeXtile-reinforced air and water type
    矿用输送空气和水的织物增强橡胶软管及软管组合件
    China National Standards
    X

    English PDF
    GB/T 12586-2003 Rubber or plastics-coated fabrics--Determination of resistance to damage by fleXing
    橡胶或塑料涂覆织物 耐屈挠破坏性的测定
    China National Standards
    X

    English PDF
    GB 17269-2003 Safety regulation for the prevention and protection of dust eXplosion in manufacturing powder of aluminum and/or magnesium
    铝镁粉加工粉尘防爆安全规程
    China National Standards
    X

    English PDF
    GB/T 19066.3-2003 Specifications of fleXible graphitecorrugated metal gaskets
    柔性石墨金属波齿复合垫片 技术条件
    China National Standards
    X

    English PDF
    GB/T 19067.1-2003 Geometrical Product Specifications(GPS)--Surface teXture: Profile method--Measurement standards--Part 1: Material measures
    产品几何量技术规范(GPS) 表面结构 轮廓法 测量标准 第1部分:实物测量标准
    China National Standards
    X

    English PDF
    GB/T 18778.2-2003 Geometrical Product Specifications(GPS)--Surface teXture: Profile method--Surface having stratified functional properties--Part 2: Height characterization using the linear material ratio curve
    产品几何量技术规范(GPS) 表面结构 轮廓法 具有复合加工特征的表面 第2部分: 用线性化的支承率曲线表征高度特性
    China National Standards
    X

    English PDF
    GB/T 8190.8-2003 Reciprocating internal combustion engines--EXhaust emission measurement--Part 8: Engine group determination
    往复式内燃机 排放测量 第8部分: 发动机系组的确定
    China National Standards
    X

    English PDF
    GB/T 8190.7-2003 Reciprocating internal combustion engines--EXhaust emission measurement--Part 7: Engine family determination
    往复式内燃机 排放测量 第7部分: 发动机系族的确定
    China National Standards
    X

    English PDF
    GB/T 8190.3-2003 Reciprocating internal combustion engines--EXhaust emission measurement--Part 3:Definitions and methods of measurement of exhaust gas smoke under steady-state conditions
    往复式内燃机 排放测量 第3部分: 稳态工况排气烟度的定义和测量方法
    China National Standards
    X

    English PDF
    GB/T 4437.2-2003 Aluminium and aluminium alloy eXtruded tubes--Part 2: Seam tubes
    铝及铝合金热挤压管 第2部分: 有缝管
    China National Standards
    X

    English PDF
    GB 50338-2003 Code of design for fiXed fire monitor extinguishing systems
    固定消防炮灭火系统设计规范
    China National Standards
    X

    English PDF
    GB/T 8196-2003 Safety ofmachinery--Guards--General requirements for the design and construction of fiXed and movable guards
    机械安全 防护装置 固定式和活动式防护装置设计与制造一般要求
    China National Standards
    X

    English PDF
    GB/T 18780.2-2003 Geometrical Product Specifications(GPS)--Geometrical features--Part 2: EXtracted median line of a cylinder and a cone,extracted median surface,local size of an extracted feature
    产品几何量技术规范(GPS) 几何要素 第2部分: 圆柱面和圆锥面的提取中心线、平行平面的提取中心面、提取要素的局部尺寸
    China National Standards
    X

    English PDF
    GB/T 12472-2003 Geometrical Product Specifications(GPS)--Surface teXture:Profile method--Surface roughness parameters and their values for wooden pieces
    产品几何量技术规范(GPS) 表面结构 轮廓法 木制件表面粗糙度参数及其数值
    China National Standards
    X

    English PDF
    GB/T 18992.2-2003 Crosslinked polyethylene(PE-X) piping systems for hot and cold water installations--Part 2: Pipes
    冷热水用交联聚乙烯(PE-X)管道系统 第2部分:管材
    China National Standards
    X

    English PDF
    GB/T 18992.1-2003 Crosslinked polyethylene(PE-X) piping systems for hot and cold water installations--Part 1: General
    冷热水用交联聚乙烯(PE-X)管道系统 第1部分:总则
    China National Standards
    X

    English PDF
    GB/T 16886.5-2003 Biological evaluation ofmedical devices--Part 5: Test for in vitro cytotoXicity
    医疗器械生物学评价 第5部分: 体外细胞毒性试验
    China National Standards
    X

    English PDF
    GB/T 14831-2003 Test method of resistance to steam ageing forrubber lateX products
    胶乳制品蒸汽老化试验方法
    China National Standards
    X

    English PDF
    GB/T 18970-2003 Feed additive--10% 4,4′-diketo-β-carotene(10% canthaXanthin)
    饲料添加剂 10%β,β-胡萝卜-4,4-二酮(10%斑蝥黄)
    China National Standards
    X

    English PDF
    GB/T 18980-2003 Determination of aflatoXin M1 content in milk and milk powder--Cleanup byimmunoaffinity chromatogaphy and determination by high-performance liquid chromatigraphy and fluorometer
    乳和乳粉中黄曲霉毒素M1的测定 免疫亲和层析净化高效液相色谱法和荧光光度法
    China National Standards
    X

    English PDF
    GB/T 18979-2003 Determination aflatoXins content in food--Cleanup by immunoaffinity chromatogaphy and determination by high-performance liquid chromatigraphy and fluor-ometer
    食品中黄曲霉毒素的测定 免疫亲和层析净化高效液相色谱法和荧光光度法
    China National Standards
    X

    English PDF
    GB/T 8461-2003 TeXtile machineryand accessories--Cone sectional warping machines--Maximum usable width
    纺织机械与附件 圆锥滚筒分条整经机 最大有效宽度
    China National Standards
    X

    English PDF
    GB/T 8457-2003 TeXtile machinery and accessories--Knitting machines--Number of needles for circular knitting machines of large nominal diameter
    纺织机械 针织机 大公称直径圆机的针数
    China National Standards
    X

    English PDF
    GB/T 8456-2003 TeXtile machinery--Knitting machines--Nominal diameters of circular machines
    纺织机械 针织机 圆机的公称直径
    China National Standards
    X

    English PDF
    GB/T 6975.2-2003 TeXtile machinery and accessories--Bales of man-made staple fibres--Dimensions
    纺织机械与附件 化学短纤维包 尺寸
    China National Standards
    X

    English PDF
    GB/T 6594.2-2003 Plastics--Polystyrene(PS) moulding and eXtrusion materials--Part 2: Preparation of testspecimens and determination of properties
    塑料 聚苯乙烯(PS)模塑和挤出材料 第2部分: 试样制备和性能测定
    China National Standards
    X

    English PDF
    GB/T 6002.7-2003 TeXtile machinery terminology--Part 7: Rotor type open-end spinning machines
    纺织机械术语 第7部分: 转杯纺纱机
    China National Standards
    X

    English PDF
    GB/T 6002.6-2003 TeXtile machinery terminology--Part 6: Pirn winding machines
    纺织机械术语 第6部分: 卷纬机
    China National Standards
    X

    English PDF
    GB/T 5459-2003 TeXtile machinery and accessories--Spindle gauges for ring-spinning and ring-doubling frames
    纺织机械与附件 环锭细纱机和环锭捻线机 锭距
    China National Standards
    X

    English PDF
    GB/T 2546.2-2003 Plastics--Polypropylene(PP) moulding and eXtrusion materials--Part 2: Preparation of test specimens and determination of properties
    塑料 聚丙烯(PP)模塑和挤出材料 第2部分: 试样制备和性能测定
    China National Standards
    X

    English PDF
    GB/T 18964.2-2003 Plastics--Impact-resistant polystyrene(PS-I) moulding and eXtrusion materials--Part 2: Preparation of test specimens and determination of properties
    塑料 抗冲击聚苯乙烯(PS-I)模塑和挤出材料 第2部分: 试样制备和性能测定
    China National Standards
    X

    English PDF
    GB/T 8458-2003 TeXtile machinery and accessories--Pitches of knitting machine needles
    纺织机械与附件 针织机针距
    China National Standards
    X

    English PDF
    GB/T 8389-2003 AXes--General technical requirements
    钢斧通用技术条件
    China National Standards
    X

    English PDF
    GB/T 19042.1-2003 Evaluation and routine testing in medical imaging departments--Part 3-1: Acceptance test--Imaging performance of X-ray equipment for radiographic and radioscopic systems
    医用成像部门的评价及例行试验 第3-1部分:X射线摄影和透视系统用X射线设备成像性能验收试验
    China National Standards
    X

    English PDF
    GB/T 18951-2003 Rubber compounding ingredients--Zinc oXide--Test methods
    橡胶配合剂 氧化锌 试验方法
    China National Standards
    X

    English PDF
    GB/T 18945-2003 Polymeric materials,cellular fleXible--Method of assessment of air flow value at constant pressure-drop
    高聚物多孔弹性材料 恒定压力降时流量的估算方法
    China National Standards
    X

    English PDF
    GB/T 18944.1-2003 FleXible cellular polymeric materials--Sponge and expanded cellular rubber products--Part 1:Sheeting
    高聚物多孔弹性材料 海绵与多孔橡胶制品 第1部分:片材
    China National Standards
    X

    English PDF
    GB/T 18942.2-2003 FleXible cellular polymeric materials--Determination of stress-strain characteristicsin compression--Part 2: High density maternals
    高聚物多孔弹性材料 压缩应力应变特性的测定 第2部分: 高密度材料
    China National Standards
    X

    English PDF
    GB/T 18942.1-2003 Polymeric material,cellular fleXible--Determination of stress-strain characteristic in compression--Part 1: Low density materials
    高聚物多孔弹性材料 压缩应力应变特性的测定 第1部分:低密度材料
    China National Standards
    X

    English PDF
    GB/T 18941-2003 FleXible cellular polymeric materials--Determination of fatigue by constant-load pounding
    高聚物多孔弹性材料 定负荷冲击疲劳的测定
    China National Standards
    X

    English PDF
    GB/T 14274-2003 Polymeric materials,cellular fleXible--Accelerated ageing tests
    高聚物多孔弹性材料 加速老化试验
    China National Standards
    X

    English PDF
    GB/T 12825-2003 Polymeric materials,cellular fleXible--Determination of hardness by indentation technique
    高聚物多孔弹性材料 凹入度法硬度测定
    China National Standards
    X

    English PDF
    GB/T 10655-2003 Polymeric materials,cellular fleXible--Determination of air flow permeability
    高聚物多孔弹性材料 空气透气率的测定
    China National Standards
    X

    English PDF
    GB/T 18933-2003 Sales contract message of international trade(XML Formal)
    国际货物销售合同报文(XML格式)
    China National Standards
    X

    English PDF
    GB/T 18932.5-2002 Method for the determination of sulfacetamide,sulfapyridine,sulfamerazine,sulfamethoXypyridazine,sulfameter,sulfachloropyridazine,sulfamethoxazole and sulfadime-thoxine residues in honey--Liquid chromatographic method
    蜂蜜中磺胺醋酰、磺胺吡啶、磺胺甲基嘧啶、磺胺甲氧哒嗪、磺胺对甲氧嘧啶、磺胺氯哒嗪、磺胺甲基异NFDAE唑、磺胺二甲氧嘧啶残留量的测定方法 液相色谱法
    China National Standards
    X

    English PDF
    GB/T 18932.4-2002 Method for the determination of oXytetracycline,tetracycline,chlortetracycline,and doxycycline residues in honey--Liquid chromatographic method
    蜂蜜中土霉素、四环素、金霉素、强力霉素残留量的测定方法 液相色谱法
    China National Standards
    X

    English PDF
    GB/T 13477.10-2002 Test method for building sealants--Part 10:Determination of tensile properties at maintained eXtension
    建筑密封材料试验方法 第10部分:定伸粘结性的测定
    China National Standards
    X

    English PDF
    GB/T 18924-2002 Wirebound boXes
    钢丝捆扎箱
    China National Standards
    X

    English PDF
    GB/T 13477.7-2002 Test method for building sealants--Part 7:Determination of low-temperature fleXibility
    建筑密封材料试验方法 第7部分:低温柔性的测定
    China National Standards
    X

    English PDF
    GB/T 13477.4-2002 Test method for building sealants--Part 4:Determination of eXtrudability of one-component sealants
    建筑密封材料试验方法 第4部分:原包装单组分密封材料挤出性的测定
    China National Standards
    X

    English PDF
    GB/T 13477.3-2002 Test method for building sealants--Part 3:Determination of eXtrudability of sealants using standardized apparatus
    建筑密封材料试验方法 第3部分:使用标准器具测定密封材料挤出性的方法
    China National Standards
    X

    English PDF
    GB/T 13477.15-2002 Test method for building sealants--Part 15:Determination of adhesion/cohesion properties after eXposure to heat and artificial light through glass and to water
    建筑密封材料试验方法 第15部分:经过热、透过玻璃的人工光源和水曝露后粘结性的测定
    China National Standards
    X

    English PDF
    GB/T 13477.14-2002 Testmethod for building sealants--Part 14:Determination of resistance to prolonged eXposure to water
    建筑密封材料试验方法 第14部分:浸水及拉伸-压缩循环后粘结性的测定
    China National Standards
    X

    English PDF
    GB/T 13477.11-2002 Test method for building sealants--Part 11:Determination of adhesion/cohesion properties at maintained eXtension after immersion in water
    建筑密封材料试验方法 第11部分:浸水后定伸粘结性的测定
    China National Standards
    X

    English PDF

    Find out:7853Items   |  To Page of: First -Previous-Next -Last  | [62] [63] [64] [65] [66] [67] [68]

     

    +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