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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 6693-2009 |
Dyestuffs - DeterminatIOn of the dusting behaviour 染料 粉尘飞扬性的测定 |
China National Standards IO |
 English PDF |
| GB/T 6692-2006 |
Resin finishing agent―DeterminatIOn of relative density 树脂整理剂 相对密度的测定 |
China National Standards IO |
English PDF |
| GB/T 6691-2007 |
Resin finishing agent - DeterminatIOn of refractive index 树脂整理剂 折射率的测定 |
China National Standards IO |
English PDF |
| GB/T 6688-2008 |
Dyestuffs - DeterminatIOn of relative strength and color difference - Instrumental method 染料 相对强度和色差的测定 仪器法 |
China National Standards IO |
English PDF |
| GB/T 6686-2006 |
ClassificatIOn of colours 染料分类 |
China National Standards IO |
English PDF |
| GB/T 6683-1997 |
Petroleum products--DeterminatIOn of precision data in relation to methods of test 石油产品试验方法精密度数据确定法 |
China National Standards IO |
English PDF |
| GB/T 6682-2008 |
Water for analytical laboratory use - SpecificatIOn and test methods 分析实验室用水规格和试验方法 |
China National Standards IO |
English PDF |
| GB/T 6677-2008 |
ClassificatIOn of cloth shoes 布鞋分类 |
China National Standards IO |
English PDF |
| GB/T 6673-2001 |
Plastics film and sheeting--DeterminatIOn of length and width 塑料薄膜和薄片长度和宽度的测定 |
China National Standards IO |
English PDF |
| GB/T 6672-2001 |
Plastics film and sheeting--DeterminatIOn of thickness by mechanical scanning 塑料薄膜和薄片厚度测定 机械测量法 |
China National Standards IO |
English PDF |
| GB/T 6671-2001 |
Thermoplastics pipes--DeterminatIOn of longitudinal reversion 热塑性塑料管材 纵向回缩率的测定 |
China National Standards IO |
English PDF |
| GB/T 6670-2008 |
Flexible cellular polymeric materials - DeterminatIOn of resilience by ball rebound 软质泡沫聚合材料 落球法回弹性能的测定 |
China National Standards IO |
English PDF |
| GB/T 6669-2008 |
Flexible cellular polymeric materials - DeterminatIOn of compression set 软质泡沫聚合材料 压缩永久变形的测定 |
China National Standards IO |
English PDF |
| GB/T 6667-1986 |
Methods of measurement for equipment used in terrestrial radIO-relay systems--Part 2:Measurements for sub-systems--Section two:measurements in the antennas and passive repeaters 地面无线电接力系统所用设备的测量方法 第二部分:分系统的测量 第二节 天线和无源转向器的测量 |
China National Standards IO |
English PDF |
| GB/T 6663.1-2007 |
Directly heated negative temperature coefficient thermistors - Part 1: Generic specificatIOn 直热式负温度系数热敏电阻器 第1部分:总规范 |
China National Standards IO |
English PDF |
| GB/T 6662-1986 |
Methods of measurement for equipment used in terrestrial radIO-relay systems--Part 1:Measurements common to sub-systems and simulated systems--Section three--Measurements in the intermediate-frequency range 地面无线电接力系统所用设备的测量方法 第一部分:分系统和仿真系统通用的测量 第三节:中频范围的测量 |
China National Standards IO |
English PDF |
| GB/T 6648-1986 |
Blank detail specificatIOn for semiconductor inte-grated circuit static read/write memories 半导体集成电路静态读/ 写存储器空白详细规范(可供认证用) |
China National Standards IO |
English PDF |
| GB/T 6643-1986 |
General purpose rigid coaxial transmissIOn lines and their associated flange connectors--Generic specification 通用硬同轴传输线及其法兰连接器总规范 |
China National Standards IO |
English PDF |
| GB/T 6627-1986 |
DesignatIOns for lumbered synthetic quartz crystals 人造石英晶体棒材型号命名方法 |
China National Standards IO |
English PDF |
| GB/T 6624-2009 |
Standard method for measuring the surface quality of polished silicon slices by visual inspectIOn 硅抛光片表面质量目测检验方法 |
China National Standards IO |
English PDF |
| GB/T 6618-2009 |
Test method for thickness and total thickness variatIOn of silicon slices 硅片厚度和总厚度变化测试方法 |
China National Standards IO |
English PDF |
| GB/T 6609.9-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Determination of cupric oxide content--2，9-Dimethyl-1，10 phenanthroline photometric method 氧化铝化学分析方法和物理性能测定方法 新亚铜灵光度法测定氧化铜含量 |
China National Standards IO |
English PDF |
| GB/T 6609.8-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Determination of chromium sesquioxide content--Diphenyl carbazide photometric method 氧化铝化学分析方法和物理性能测定方法 二苯基碳酰二肼光度法测定三氧化二铬含量 |
China National Standards IO |
English PDF |
| GB/T 6609.7-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Determination of titanium dioxide content--Diantiprylmehane photometric method 氧化铝化学分析方法和物理性能测定方法 二安替吡啉甲烷光度法测定二氧化钛含量 |
China National Standards IO |
English PDF |
| GB/T 6609.6-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Determination of potassium oxide content--Flame photometric method 氧化铝化学分析方法和物理性能测定方法 火焰光度法测定氧化钾含量 |
China National Standards IO |
English PDF |
| GB/T 6609.5-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Determination of sodium oxide content 氧化铝化学分析方法和物理性能测定方法 氧化钠含量的测定 |
China National Standards IO |
English PDF |
| GB/T 6609.4-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Determination of ferric oxide content--Orthophenanthroline photometric method 氧化铝化学分析方法和物理性能测定方法 邻二氮杂菲光度法测定三氧化二铁含量 |
China National Standards IO |
English PDF |
| GB/T 6609.37-2009 |
Chemical analysis methods and determinatIOn of physical performance of alumina - Part 37: Determination of the particles size content less then 20μm 氧化铝化学分析方法和物理性能测定方法 第37部分：粒度小于20μm颗粒含量的测定 |
China National Standards IO |
English PDF |
| GB/T 6609.36-2009 |
Chemical analysis methods and determinatIOn of physical performance of alumina - Part 36: Determination of flow time 氧化铝化学分析方法和物理性能测定方法 第36部分：流动时间的测定 |
China National Standards IO |
English PDF |
| GB/T 6609.35-2009 |
Chemical analysis methods and determinatIOn of physical performance of alumina - Part 35: Determination of specific surface area by nitrogen adsorption 氧化铝化学分析方法和物理性能测定方法 第35部分：比表面积的测定 氮吸附法 |
China National Standards IO |
English PDF |
| GB/T 6609.34-2009 |
Chemical analysis methods and determinatIOn of physical performance of alumina - Part 34: Method of calculating alumina content 氧化铝化学分析方法和物理性能测定方法 第34部分：三氧化二铝含量的计算方法 |
China National Standards IO |
English PDF |
| GB/T 6609.33-2009 |
Chemical analysis methods and determinatIOn of physical performance of alumina - Part 33: Determination of attrition index 氧化铝化学分析方法和物理性能测定方法 第33部分：磨损指数的测定 |
China National Standards IO |
English PDF |
| GB/T 6609.32-2009 |
Chemical analysis methods and determinatIOn of physical performance of alumina - Part 32: Determination of a-alumina content by X-ray diffraction 氧化铝化学分析方法和物理性能测定方法 第32部分：a-三氧化二铝含量的测定 X-射线衍射法 |
China National Standards IO |
English PDF |
| GB/T 6609.3-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Determination of silicon dioxide content--Molybdenum blue photometric method 氧化铝化学分析方法和物理性能测定方法 钼蓝光度法测定二氧化硅含量 |
China National Standards IO |
English PDF |
| GB/T 6609.31-2009 |
Chemical analysis methods and determinatIOn of physical performance of alumina - Part 31: Determination of angle of flow 氧化铝化学分析方法和物理性能测定方法 第31部分：流动角的测定 |
China National Standards IO |
English PDF |
| GB/T 6609.30-2009 |
Chemical analysis methods and determinatIOn of physical performance of alumina - Part 30: X-ray fluorescence spectrometric method for the determination centent of trace elements 氧化铝化学分析方法和物理性能测定方法 第30部分：X射线荧光光谱法测定微量元素含量 |
China National Standards IO |
English PDF |
| GB/T 6609.29-2004 |
Chemical analysismethods and determinatIOn of physical performance of alumina--Determination of an absorption index 氧化铝化学分析方法和物理性能测定方法 吸附指数的测定 |
China National Standards IO |
English PDF |
| GB/T 6609.28-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Determination of the fine particle size distribution(less than 60μm)--Method using electroformed sieves 氧化铝化学分析方法和物理性能测定方法 小于60μm的细粉末粒度分布的测定 湿筛法 |
China National Standards IO |
English PDF |
| GB/T 6609.27-2009 |
Chemical analysis methods and determinatIOn of physical performance of alumina - Part 27: Partical size analysis - Method using electriformed sieves 氧化铝化学分析方法和物理性能测定方法 第27部分：粒度分析 筛分法 |
China National Standards IO |
English PDF |
| GB/T 6609.26-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Determination of absolute density--Pycnometer method 氧化铝化学分析方法和物理性能测定方法 有效密度的测定 比重瓶法 |
China National Standards IO |
English PDF |
| GB/T 6609.25-2004 |
Chemical analysismethods and determinatIOn of physical performance of alumina--Determination of untamped density 氧化铝化学分析方法和物理性能测定方法 松装密度的测定 |
China National Standards IO |
English PDF |
| GB/T 6609.24-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Measurement of the angle of repose 氧化铝化学分析方法和物理性能测定方法 安息角的测定 |
China National Standards IO |
English PDF |
| GB/T 6609.23-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Preparation andstorage of test samples 氧化铝化学分析方法和物理性能测定方法 试样的制备和贮存 |
China National Standards IO |
English PDF |
| GB/T 6609.22-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Sampling 氧化铝化学分析方法和物理性能测定方法 取样 |
China National Standards IO |
English PDF |
| GB/T 6609.2-2009 |
Chemical analysis methods and determinatIOn of physical performance of aluminium hydroxide - Part 2: Determination of loss of mass at 300℃ and 1000℃ 氧化铝化学分析方法和物理性能测定方法 第2部分：300℃和1000℃质量损失的测定 |
China National Standards IO |
English PDF |
| GB/T 6609.21-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Determination of gallium trioxide content--Butyrhodamine B spectrophotometric method 氧化铝化学分析方法和物理性能测定方法 丁基罗丹明B分光光度法测定三氧化二镓含量 |
China National Standards IO |
English PDF |
| GB/T 6609.20-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Determination of magnesia content--Flame atomic absorption spectrophotometric method 氧化铝化学分析方法和物理性能测定方法 火焰原子吸收光谱法测定氧化镁含量 |
China National Standards IO |
English PDF |
| GB/T 6609.19-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Determination of lithia content--Flame atomic absorption spectrophotometric method 氧化铝化学分析方法和物理性能测定方法 火焰原子吸收光谱法测定氧化锂含量 |
China National Standards IO |
English PDF |
| GB/T 6609.18-2004 |
Chemical analysis methods and determinatIOn of physical performanceof alumina--Determination of sulfate content--N，N-dimethyl-P-phenylenediamine spectrophotometric method 氧化铝化学分析方法和物理性能测定方法 N，N-二甲基对苯二胺分光光度法测定硫酸根含量 |
China National Standards IO |
English PDF |
| GB/T 6609.17-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Determination of phosphorus pentoxide content--Molybdenum blue spectrophotometric method 氧化铝化学分析方法和物理性能测定方法 钼蓝分光光度法测定五氧化二磷含量 |
China National Standards IO |
English PDF |
| GB/T 6609.16-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Determination of boron trioxide content--Curcumin spectrophotometric method 氧化铝化学分析方法和物理性能测定方法 姜黄素分光光度法测定三氧化二硼含量 |
China National Standards IO |
English PDF |
| GB/T 6609.15-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Determination of chlorine content--Ferric thiocyanate photometric method 氧化铝化学分析方法和物理性能测定方法 硫氰酸铁光度法测定氯含量 |
China National Standards IO |
English PDF |
| GB/T 6609.14-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Determination of fluorine content--Lanthanum-alizarincomplexone spectrophotometric method 氧化铝化学分析方法和物理性能测定方法 镧-茜素络合酮分光光度法测定氟含量 |
China National Standards IO |
English PDF |
| GB/T 6609.13-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Determination of calcium oxide content--Flame atomic absorption spectrophotometric method 氧化铝化学分析方法和物理性能测定方法 火焰原子吸收光谱法测定氧化钙含量 |
China National Standards IO |
English PDF |
| GB/T 6609.12-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Determination of zinc oxide content--Flame atomic absorption spectrophotometricmethod 氧化铝化学分析方法和物理性能测定方法 火焰原子吸收光谱法测定氧化锌含量 |
China National Standards IO |
English PDF |
| GB/T 6609.11-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Determination of manganous oxide content--Flame atomic absorption spectrophotometric method 氧化铝化学分析方法和物理性能测定方法 火焰原子吸收光谱法测定一氧化锰含量 |
China National Standards IO |
English PDF |
| GB/T 6609.10-2004 |
Chemical analysis methods and determinatIOn of physical performance of alumina--Determination of vanadic oxide content--N-benzoyl-N-phenylhydroxylamine extraction photometric method 氧化铝化学分析方法和物理性能测定方法 苯甲酰苯基羟胺萃取光度法测定五氧化二钒含量 |
China National Standards IO |
English PDF |
| GB/T 660-2015 |
Chemical reagent—Ammonium thIOcyanate 化学试剂 硫氰酸铵 |
China National Standards IO |
English PDF |
| GB/T 6598-1986 |
DeterminatIOn of weight-average molecular weight of polystyrene standards by low angle laser light scattering method 小角激光光散射法测定聚苯乙烯标准样品的重均分子量 |
China National Standards IO |
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 IO |
English PDF |
| GB/T 6594.1-1998 |
Polystyrene (PS) moulding and extrusIOn materials--Part 1:Designation system and basis for specifications 聚苯乙烯(PS)模塑和挤出材料 第1部分:命名系统和分类基础 |
China National Standards IO |
English PDF |
| GB/T 6592-2010 |
Electrical and electronic measurement equipment - ExpressIOn of performance 电工和电子测量设备性能表示 |
China National Standards IO |
English PDF |
| GB/T 6590-1998 |
Semiconductor devices--Discrete devices--Part6:Thyristors--SectIOn Two:Blank detail specification for bidirectional triode thyristors(triacs)，ambient or case-rated，up to 100A 半导体器件 分立器件 第6部分:闸流晶体管 第二篇 100A以下环境或管壳额定的双向三极闸流晶体管空白详细规范 |
China National Standards IO |
English PDF |
| GB/T 6589-2002 |
Semiconductordevices--Discrete devices--Part 3-2:Signal (including switching) and regulator dIOdes--Blank detail specification for voltage-regulator diodes and voltage-reference diodes (excluding temperature-compensated precision reference diodes) 半导体器件 分立器件 第3-2部分:信号(包括开关)和调整二极管 电压调整二极管和电压基准二极管(不包括温度补偿精密基准二极管) 空白详细规范 |
China National Standards IO |
English PDF |
| GB/T 6588-2000 |
Semiconductor devices--Discrete devices--Part 3:Signal(including switching) and regulator dIOdes--Section One--Blank detail specification for signal diodes，switching diodes and controlled-avalanche diodes 半导体器件 分立器件 第3部分:信号(包括开关)和调整二极管 第1篇 信号二极管、开关二极管和可控雪崩二极管空白详细规范 |
China National Standards IO |
English PDF |
| GB/T 6587-2012 |
General specificatIOn for electronic measuring instruments 电子测量仪器通用规范 |
China National Standards IO |
English PDF |
| GB/T 6585-2013 |
General specificatIOn for cathode-ray oscilloscopes 阴极射线示波器通用规范 |
China National Standards IO |
English PDF |
| GB/T 6582-1997 |
Glass--Hydrolytic resistance of glass grains at 98℃--Method of test and classificatIOn 玻璃在98℃耐水性的颗粒试验方法和分级 |
China National Standards IO |
English PDF |
| GB/T 6581-2007 |
Glass-Resistance to attack by hydrochloric acid at 100℃ - Flame emissIOn or flame atomic absorption spectrometric method 玻璃在100℃耐盐酸浸蚀性的火焰发射或原子吸收光谱测定方法 |
China National Standards IO |
English PDF |
| GB/T 6580-1997 |
Glass--Resistance to attackby boiling aqueous solutIOn of mixed alkali--Method of test and classification 玻璃耐沸腾混合碱水溶液浸蚀性试验方法和分级 |
China National Standards IO |
English PDF |
| GB/T 6578-2008 |
Hydraulic fluid power-Cylinder-Reciprocating-Housings for rod wipers-DimensIOns and tolerances 液压缸活塞杆用防尘圈沟槽型式、尺寸和公差 |
China National Standards IO |
English PDF |
| GB/T 6577-1986 |
Hydraulic fluid power--Cylinders--Piston seal housings incorporating bearing rings--DimensIOns and tolerances 液压缸活塞用带支承环密封沟槽型式、尺寸和公差 |
China National Standards IO |
English PDF |
| GB/T 6576-2002 |
Machine tools--LubricatIOn systems 机床润滑系统 |
China National Standards IO |
English PDF |
| GB/T 6573-2008 |
Cooling water radiator for tractor diesel engines - Method of indentifcatIOn symbols 拖拉机柴油机散热器型号编制方法 |
China National Standards IO |
English PDF |
| GB/T 6572-2014 |
Earth-moving machinery―Hydraulic excavators―Terminology and commercial specificatIOns 土方机械 液压挖掘机 术语和商业规格 |
China National Standards IO |
English PDF |
| GB/T 6571-1995 |
Semiconductordevices--Discrete devices--Part 3:Signal(including switching)and regulator dIOdes 半导体器件 分立器件 第3部分:信号(包括开关)和调整二极管 |
China National Standards IO |
English PDF |
| GB/T 6567.5-2008 |
Technical drawings - Graphical symbols for piping systems - Axonometric representatIOn of graphical symbols for piping, piping accessories and valves etc. 技术制图 管路系统的图形符号 管路、管件和阀门等图形符号的轴测图画法 |
China National Standards IO |
English PDF |
| GB/T 6565-2015 |
ClassificatIOn and codes of occupations 职业分类与代码 |
China National Standards IO |
English PDF |
| GB/T 6557-2009 |
Mechanical vibratIOn - Methods and criteria for the mechanical balancing of flexible rotors 挠性转子机械平衡的方法和准则 |
China National Standards IO |
English PDF |
| GB/T 6556-1994 |
Type，main dimensIOn，material and marking of mechanical seals 机械密封的型式、主要尺寸、材料和识别标志 |
China National Standards IO |
English PDF |
| GB/T 6554-2003 |
Resin based reactive compounds used for electrical insulatIOn--Part 2:Methods of test--Methods for coating pourders for electrical purposes 电气绝缘用树脂基反应复合物 第2部分:试验方法 电气用涂敷粉末方法 |
China National Standards IO |
English PDF |
| GB/T 6553-2014 |
Electrical insulating materials used under severe ambient conditIOns―Test methods for evaluating resistance to tracking and erosion 严酷环境条件下使用的电气绝缘材料 评定耐电痕化和蚀损的试验方法 |
China National Standards IO |
English PDF |
| GB/T 6550-1986 |
InformatIOn processing -- 9-Track，127mm wide magnetic tape for information interchange recorded at 63rpmm， phase encoded 信息处理交换用9磁道12.7毫米宽63行/毫米调相制记录磁带 |
China National Standards IO |
English PDF |
| GB/T 6548-2011 |
Corrugated fiberboard - DeterminatIOn of ply adhesive strength 瓦楞纸板粘合强度的测定 |
China National Standards IO |
English PDF |
| GB/T 6547-1998 |
Corrugated fibreboard--DeterminatIOn of thickness 瓦楞纸板 厚度的测定法 |
China National Standards IO |
English PDF |
| GB/T 6546-1998 |
Corrugated fibreboard--DeterminatIOn of edgewise crush resistance 瓦楞纸板 边压强度的测定法 |
China National Standards IO |
English PDF |
| GB/T 6545-1998 |
Corrugated fibreboard--DeterminatIOn of bursting strength 瓦楞纸板 耐破强度的测定法 |
China National Standards IO |
English PDF |
| GB/T 6541-1986 |
Petroleum products--Mineral oils--DeterminatIOn of interfacial tension of oil against water--Ring method 石油产品油对水界面张力测定法 (圆环法) |
China National Standards IO |
English PDF |
| GB/T 6540-1986 |
Petroleum products--DeterminatIOn of colour 石油产品颜色测定法 |
China National Standards IO |
English PDF |
| GB/T 6539-1997 |
Standard test methods for electrical conductivity of aviatIOn and distillate fuels 航空燃料与馏分燃料电导率测定法 |
China National Standards IO |
English PDF |
| GB/T 6538-2010 |
DeterminatIOn of apparent viscosity of engine oils using the cold-cranking simulator 发动机油表观黏度的测定 冷启动模拟机法 |
China National Standards IO |
English PDF |
| GB/T 6536-2010 |
Standard test method for distillatIOn of petroleum products at atmospheric pressure 石油产品常压蒸馏特性测定法 |
China National Standards IO |
English PDF |
| GB/T 6534-1986 |
Gasoline--DeterminatIOn of vapor-liquid ratio 汽油气-液比测定法 |
China National Standards IO |
English PDF |
| GB/T 6532-2012 |
Test method for salt in crude oils(PotentIOmetric method) 原油中盐含量的测定 电位滴定法 |
China National Standards IO |
English PDF |
| GB/T 6531-1986 |
Crude petroleum and fuel oils--DeterminatIOn of sediment--Extraction method 原油和燃料油中沉淀物测定法(抽提法) |
China National Standards IO |
English PDF |
| GB/T 6529-2008 |
Textiles - Standard atmospheres for conditIOning and testing 纺织品 调湿和试验用标准大气 |
China National Standards IO |
English PDF |
| GB/T 6525-1986 |
Sintered metal materials--DeterminatIOnof compression strength at room temperature 烧结金属材料室温压缩强度的测定 |
China National Standards IO |
English PDF |
| GB/T 6524-2003 |
Metallic powders--DeterminatIOn of particle size distribution by gravitational sedimentation in a liquid and attenuation measurement 金属粉末 粒度分布的测量 重力沉降光透法 |
China National Standards IO |
English PDF |
| GB/T 6519-2013 |
Ultrasonic inspectIOn of wrought aluminium and magnesium alloy products 变形铝、镁合金产品超声波检验方法 |
China National Standards IO |
English PDF |
| GB/T 6513-1986 |
Character set for biblIOgraphic information interchange on mathematical coding of characters 文献书目信息交换用数学字符编码字符集 |
China National Standards IO |
English PDF |
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