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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 36700.8-2018 |
Chemicals—Guidance on hazard classification to the aquatic environment—Part 8:Guidance on transformation/dissolution of metals and metal compounds in aqueous media 化学品 水生环境危害分类指导 第8部分：金属和金属化合物在水介质中的转化/溶解指导 |
China National Standards iron |
 English PDF |
| GB/T 36700.5-2018 |
Chemicals—Guidance on hazard classification to the aquatic environment—Part 5: Bioconcentration 化学品 水生环境危害分类指导 第5部分：生物富集 |
China National Standards iron |
English PDF |
| GB/T 36700.6-2018 |
Chemicals—Guidance on hazard classification to the aquatic environment—Part 6：Quantitative structure-activity relationship(QSAR) 化学品 水生环境危害分类指导 第6部分：定量结构活性关系（QSAR） |
China National Standards iron |
English PDF |
| GB/T 36700.2-2018 |
Chemicals—Guidance on hazard classification to the aquatic environment—Part 2: Harmonized classification of method 化学品 水生环境危害分类指导 第2部分：统一分类方法 |
China National Standards iron |
English PDF |
| GB/T 36651-2018 |
Information security techniques—Biometric authentication protocol framework based on trusted environment 信息安全技术 基于可信环境的生物特征识别身份鉴别协议框架 |
China National Standards iron |
English PDF |
| GB/T 35973-2018 |
Environmental technical requirements for containers 集装箱环保技术要求 |
China National Standards iron |
English PDF |
| GB/T 19913-2018 |
Cast iron heating radiator 铸铁供暖散热器 |
China National Standards iron |
English PDF |
| GB/T 35871-2018 |
Inspection of grain and oils—Determination of calcium, potassium,magnesium, sodium, iron, phosphorus, zinc, copper, manganese, boron, barium, molybdenum, cobalt, chromium, lithium, strontium, nickel, sulfur, vanadium, selenium, rubidium contents in cere 粮油检验 谷物及其制品中钙、钾、镁、钠、铁、磷、锌、铜、锰、硼、钡、钼、钴、铬、锂、锶、镍、硫、钒、硒、铷含量的测定 电感耦合等离子体发射光谱法 |
China National Standards iron |
English PDF |
| GB/T 35876-2018 |
Inspection of grain and oils—Determination of sodium,mgnesium, kalium, calcium, chromium, manganese, iron, copper, zinc, arsenic, selenium, cadmium and plumbum in cereals and derived products—Iductively cupled pasma-mss sectrometric method 粮油检验 谷物及其制品中钠、镁、钾、钙、铬、锰、铁、铜、锌、砷、硒、镉和铅的测定 电感耦合等离子体质谱法 |
China National Standards iron |
English PDF |
| GB/T 17737.203-2018 |
Coaxial communication cables—Part 1-203: Environmental test methods—Test for water penetration of cable 同轴通信电缆 第1-203部分：环境试验方法 电缆的渗水试验 |
China National Standards iron |
English PDF |
| GB/T 36066-2018 |
Cleanrooms and associated controlled environments—Analysis and application of test technology 洁净室及相关受控环境 检测技术分析与应用 |
China National Standards iron |
English PDF |
| GB/T 35853.5-2018 |
List of aerospace equivalent terms—Part 5:Environmental and operating conditions for aircraft equipment 航空航天等效术语表 第5部分：飞行器设备环境和工作条件 |
China National Standards iron |
English PDF |
| GB/T 17737.205-2018 |
Coaxial communication cables—Part 1-205: Environmental test methods—Resistance to solvents and contaminating fluids 同轴通信电缆 第1-205部分：环境试验方法 耐溶剂及污染液试验 |
China National Standards iron |
English PDF |
| GB/T 17737.200-2018 |
Coaxial communication cables—Part 1-200: Environmental test methods—General requirements 同轴通信电缆 第1-200部分：环境试验方法 通用要求 |
China National Standards iron |
English PDF |
| GB/T 13240-2018 |
iron ore pellets for blast furnace feedstocks—Determination of the free-swelling index 高炉用铁球团矿 自由膨胀指数的测定 |
China National Standards iron |
English PDF |
| GB/T 36172-2018 |
Polyethylene sleeving of ductile iron pipelines for site application 现场安装聚乙烯套球墨铸铁管线 |
China National Standards iron |
English PDF |
| GB/T 14201-2018 |
iron ore pellets for blast furnace and direct reduction feedstocks—Determination of the crushing strength 高炉和直接还原用铁球团矿 抗压强度的测定 |
China National Standards iron |
English PDF |
| GB/T 9237-2017 |
Refrigerating systems and heat pumps—Safety and environmental requirements + No.2 modification sheet 制冷系统及热泵 安全与环境要求+《第2号修改单》 |
China National Standards iron |
English PDF |
| GB/T 34904-2017 |
Spheroidal graphite iron castings—Ultrasonic testing 球墨铸铁件 超声检测 |
China National Standards iron |
English PDF |
| GB/T 5588-2017 |
Technical specification for silver-nickel,silver-iron electrical contacts 银镍、银铁电触头技术条件 |
China National Standards iron |
English PDF |
| GB/T 34882-2017 |
Induction hardening and tempering of iron and steel parts 钢铁件的感应淬火与回火 |
China National Standards iron |
English PDF |
| GB/T 18916.31-2017 |
Norm of water intake—Part 31 :Sintering and pelletizing for iron and steel industry 取水定额 第31部分：钢铁行业烧结/球团 |
China National Standards iron |
English PDF |
| GB/T 34828-2017 |
Acoustics—Test methods for the qualification of free-field environments 声学 自由场环境评定测试方法 |
China National Standards iron |
English PDF |
| GB/T 12665-2017 |
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 iron |
English PDF |
| GB/T 34764-2017 |
Determination of copper,iron,zinc,manganese,boron and molybdenum content in fertilizers—Inductively coupled plasma optical emission spectroscopy 肥料中铜、铁、锰、锌、硼、钼含量的测定 等离子体发射光谱法 |
China National Standards iron |
English PDF |
| GB/T 13885-2017 |
Determination of the contents of calcium, copper, iron, magnesium, manganese, potassium, sodium and zinc in feeds—Method using atomic absorption spectrometry 饲料中钙、铜、铁、镁、锰、钾、钠和锌含量的测定 原子吸收光谱法 |
China National Standards iron |
English PDF |
| GB/T 34687-2017 |
Treatment and disposal method for iron-containing chemical sludge 含铁化工污泥处理处置方法 |
China National Standards iron |
English PDF |
| GB/T 34834-2017 |
Acoustics—Framework for calculating a distribution of sound exposure levels for impulsive sound events for the purposes of environmental noise assessment 声学 环境噪声评价中脉冲声事件暴露声级分布的计算方法 |
China National Standards iron |
English PDF |
| GB/T 34690.2-2017 |
Graphic technology—Digitalized process control for offset printing—Part 2: Working environment 印刷技术 胶印数字化过程控制 第2部分：作业环境 |
China National Standards iron |
English PDF |
| GB/T 34840.1-2017 |
Information and documentation—Principles and functional requirements for records in electronic office environments—Part 1:Overview and statement of principles 信息与文献 电子办公环境中文件管理原则与功能要求 第1部分: 概述和原则 |
China National Standards iron |
English PDF |
| GB/T 12690.5-2017 |
Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 5: Determination of cobalt,manganese,lead,nickel,copper,zinc,aluminum,chromium,magnesium,cadmium,vanadium and iron contents 稀土金属及其氧化物中非稀土杂质化学分析方法 第5部分：钴、锰、铅、镍、铜、锌、铝、铬、镁、镉、钒、铁量的测定 |
China National Standards iron |
English PDF |
| GB/T 34561-2017 |
Photovoltaic（PV）glass—Test method and performance evaluation of exposure to damp heat outdoor environment 光伏玻璃 湿热大气环境自然曝露试验方法及性能评价 |
China National Standards iron |
English PDF |
| GB/T 18772-2017 |
Technical requirement for environmental monitory on municipal solid waste sanitary landfill 生活垃圾卫生填埋场环境监测技术要求 |
China National Standards iron |
English PDF |
| GB/T 6730.14-2017 |
iron ores—Determination of calcium content—Flame atomic absorption spectrometric method 铁矿石 钙含量的测定 火焰原子吸收光谱法 |
China National Standards iron |
English PDF |
| GB/T 34614-2017 |
Photovoltaic（PV）glass—Test method and performance evaluation of exposure to urban environment in temperate climate 光伏玻璃 温和气候下城市环境自然曝露试验方法及性能评价 |
China National Standards iron |
English PDF |
| GB/T 34613-2017 |
Photovoltaic（PV）glass—Test method and performance evaluation of exposure to hot-dry and sand-dust environment 光伏玻璃 干热砂尘大气环境自然曝露试验方法及性能评价 |
China National Standards iron |
English PDF |
| GB/T 13242-2017 |
iron ores—Low-temperature disintegration test—Method using cold tumbling after static reduction 铁矿石 低温粉化试验 静态还原后使用冷转鼓的方法 |
China National Standards iron |
English PDF |
| GB/T 6730.49-2017 |
iron ores—Determination of potassium content—Flame atomic absorption spectrometric method 铁矿石 钾含量的测定 火焰原子吸收光谱法 |
China National Standards iron |
English PDF |
| GB/T 6730.76-2017 |
iron ores—Determination of potassium, sodium, vanadium, copper, zinc, lead, chromium, nickel, cobalt elements—Inductively coupled plasma optical emission spectrometry 铁矿石 钾、钠、钒、铜、锌、铅、铬、镍、钴含量的测定 电感耦合等离子体发射光谱法 |
China National Standards iron |
English PDF |
| GB/T 6730.75-2017 |
iron ores—Determination of sodium content—Flame atomic absorption spectrometric method 铁矿石 钠含量的测定 火焰原子吸收光谱法 |
China National Standards iron |
English PDF |
| GB/T 6730.3-2017 |
iron ores—Determination of hygroscopic moisture in analytical samples—Gravimetric, Karl Fischer and mass-loss methods 铁矿石 分析样中吸湿水分的测定 重量法、卡尔费休法和质量损失法 |
China National Standards iron |
English PDF |
| GB/T 4223-2017 |
iron and steel scraps 废钢铁 |
China National Standards iron |
English PDF |
| GB/T 34568-2017 |
iron ores for blast furnace and direct reduction feedstocks－Determination of bulk density 高炉和直接还原用铁矿石 体积密度的测定 |
China National Standards iron |
English PDF |
| GB/T 34608-2017 |
Water saving enterprises—iron ore mining and mineral processing industry 节水型企业 铁矿采选行业 |
China National Standards iron |
English PDF |
| GB/T 34607-2017 |
Performance assessment of the desulfurization equipment and dust collector for sintering flue gas from iron and steel industry 钢铁烧结烟气脱硫除尘装备运行效果评价技术要求 |
China National Standards iron |
English PDF |
| GB/T 12106-2017 |
Requirements and methods of environmental test for electronic keyboards 电子琴的环境试验要求和试验方法 |
China National Standards iron |
English PDF |
| GB/T 34494-2017 |
Hydrogen decrepitating neodymium iron boron permanent magnetic powder 氢碎钕铁硼永磁粉 |
China National Standards iron |
English PDF |
| GB/T 34495-2017 |
Hot pressed neodymium iron boron permanent magnetic materials 热压钕铁硼永磁材料 |
China National Standards iron |
English PDF |
| GB/T 10574.13-2017 |
Methods for chemical analysis of tin-lead solders—Part 13：Determination of antimony,bismuth,iron,arsenic,copper,silver,zinc,aluminium,cadmium,phosphorous and gold contents—Inductively coupled plasma atomic emission spectrometric method 锡铅焊料化学分析方法 第13部分：锑、铋、铁、砷、铜、银、锌、铝、镉、磷和金量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards iron |
English PDF |
| GB/T 13560-2017 |
Sintered neodymium iron boron permanent magnets 烧结钕铁硼永磁材料 |
China National Standards iron |
English PDF |
| GB/T 12690.6-2017 |
Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 6: Determination of iron content—Kslium thiocyanate, 1,10-Phenanthroline spectrophotometric method 稀土金属及其氧化物中非稀土杂质化学分析方法 第6部分：铁量的测定 硫氰酸钾、1,10-二氮杂菲分光光度法 |
China National Standards iron |
English PDF |
| GB/T 7727.5-2017 |
General terminology for ships—Part 5：Ship environment 船舶通用术语 第5部分：船舶环境 |
China National Standards iron |
English PDF |
| GB/T 34491-2017 |
Coatings for sintered neodymium iron boron permanent magnets 烧结钕铁硼表面镀层 |
China National Standards iron |
English PDF |
| GB/T 34490-2017 |
Recycled sintered neodymium iron boron permanent magnets 再生烧结钕铁硼永磁材料 |
China National Standards iron |
English PDF |
| GB/T 20168-2017 |
Rapidly-quenched neodymium iron boron permanent magnetic powder 快淬钕铁硼永磁粉 |
China National Standards iron |
English PDF |
| GB/T 4157-2017 |
Laboratory testing of metals for resistance to sulfide stress cracking and stress corrosion cracking in H2S environment 金属在硫化氢环境中抗硫化物应力开裂和应力腐蚀开裂的实验室试验方法 |
China National Standards iron |
English PDF |
| GB/T 20626.1-2017 |
Specific environmental condition—Electric and electronic products for plateau—Part 1:General technical requirements 特殊环境条件 高原电工电子产品 第1部分：通用技术要求 |
China National Standards iron |
English PDF |
| GB/T 34428.5-2017 |
Communication rules of the devices of surveillance and control system for expressway—Part 5：Tunnel environment detector 高速公路监控设施通信规程 第5部分: 隧道环境检测器 |
China National Standards iron |
English PDF |
| GB/T 17799.1-2017 |
Electromagnetic compatibility—Generic standards—Immunity for residential, commercial and light-industrial environments 电磁兼容 通用标准 居住、商业和轻工业环境中的抗扰度 |
China National Standards iron |
English PDF |
| GB/T 18916.32-2017 |
Norm of water intake—Part 32：iron ore mineral processing 取水定额 第32部分：铁矿选矿 |
China National Standards iron |
English PDF |
| GB/T 34499.2-2017 |
Methods for chemical analysis of iridium compounds—Part 2：Determination of silver, gold, platinum, palladium, rhodium, ruthenium, aluminium, copper, iron, nickel, lead, magnesium, manganese, tin, zinc, calcium, sodium, potassium, silicon content—Ind 铱化合物化学分析方法 第2部分: 银、金、铂、钯、铑、钌、铝、铜、铁、镍、 铅、镁、锰、锡、锌、钙、钠、钾、硅的测定 电感耦合等离子体原子发射光谱法 |
China National Standards iron |
English PDF |
| GB/T 6730.74-2017 |
iron ores－Determination of magnesium content－Flame atomic absorption spectrometric method 铁矿石 镁含量的测定 火焰原子吸收光谱法 |
China National Standards iron |
English PDF |
| GB/T 6730.42-2017 |
iron ores—Determination of lead content—Dithizone spectrophotometric method 铁矿石 铅含量的测定 双硫腙分光光度法 |
China National Standards iron |
English PDF |
| GB/T 6730.39-2017 |
iron ores—Determination of nickle content—Dimetylglyoxime spectrophotometric method 铁矿石 镍含量的测定 丁二酮肟分光光度法 |
China National Standards iron |
English PDF |
| GB/T 6730.47-2017 |
iron ores—Determination of niobium content—Sulfochlorophenol S spectrophotometric method 铁矿石 铌含量的测定 氯代磺酚S分光光度法 |
China National Standards iron |
English PDF |
| GB/T 6730.37-2017 |
iron ores—Determination of cobalt content—4-((5-chloro-2-pyridyl)azo]-1,3-diamino-benzene spectrophotometric method 铁矿石 钴含量的测定 4-[(5-氯-2-吡啶)偶氮]-1，3-二氨基苯分光光度法 |
China National Standards iron |
English PDF |
| GB/T 6730.26-2017 |
iron ores—Determination of fluorine content—Thorium nitrate titrimetric method 铁矿石 氟含量的测定 硝酸钍滴定法 |
China National Standards iron |
English PDF |
| GB/T 6730.31-2017 |
iron ores—Determination of vanadium—N-benzoyl-N-phenylhydroxylamine extraction spectrophotometric method 铁矿石 钒含量的测定 N-苯甲酰苯胲萃取分光光度法 |
China National Standards iron |
English PDF |
| GB/T 6730.38-2017 |
iron ores—Determination of cobalt content—Nltroso-R salt spectrophotometric method 铁矿石 钴含量的测定 亚硝基-R盐分光光度法 |
China National Standards iron |
English PDF |
| GB/T 6730.30-2017 |
iron ores—Determination of chromium content—Diphenyl carbazide spectrophotometric method 铁矿石 铬含量的测定 二苯基碳酰二肼分光光度法 |
China National Standards iron |
English PDF |
| GB/T 34191-2017 |
Methods of determination and calculation of heat balance in straight grate process for pellet firing of iron and steel industry 钢铁行业带式焙烧机焙烧球团热平衡测试与计算方法 |
China National Standards iron |
English PDF |
| GB/T 34196-2017 |
Guides for energy efficiency assessment of grate-kiln iron ore pelletizing process 链箅机-回转窑球团工序能效评估导则 |
China National Standards iron |
English PDF |
| GB/T 34202-2017 |
Ductile iron pipes, fittings and accessories—Epoxy coating (heavy-duty) 球墨铸铁管、管件及附件 环氧涂层（重防腐） |
China National Standards iron |
English PDF |
| GB/T 13241-2017 |
iron ores—Determination of reducibility 铁矿石 还原性的测定方法 |
China National Standards iron |
English PDF |
| GB/T 34211-2017 |
iron ores—Method for determination of iron reduction softening drippinger performance under load 铁矿石 高温荷重还原软熔滴落性能测定方法 |
China National Standards iron |
English PDF |
| GB/T 34208-2017 |
iron and steel—Determination of antimony and tin content—Inductively coupled plasma atomic emission spectrometric method 钢铁 锑、锡含量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards iron |
English PDF |
| GB/T 5195.15-2017 |
Fluorspar—Determination of calcium,aluminum,silicon,phosphorus,sulfur,potassium,iron,barium and lead content—Wavelength dispersive X-ray fluorescence spectrometric method 萤石 钙、铝、硅、磷、硫、钾、铁、钡、铅含量的测定 波长色散X射线荧光光谱法 |
China National Standards iron |
English PDF |
| GB/T 5195.16-2017 |
Fluorspar—Determination of silicon, aluminum, iron, potassium, magnesium and titanium content—Inductively coupled plasma atomic emission spectrometry 萤石 硅、铝、铁、钾、镁和钛含量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards iron |
English PDF |
| GB/T 34214-2017 |
iron ores—Determination of weight of free water 铁矿石 明水重量的测定 |
China National Standards iron |
English PDF |
| GB/T 6730.34-2017 |
iron ores—Determination of tin content—Pyrocatechol violet cetyl trimet hylamine bromide spectrophotometric method 铁矿石 锡含量的测定 邻苯二酚紫-溴化十六烷基三甲胺分光光度法 |
China National Standards iron |
English PDF |
| GB/T 6730.58-2017 |
iron ores－Determination of vanadium content－Flame atomic absorption spectrometric method 铁矿石 钒含量的测定 火焰原子吸收光谱法 |
China National Standards iron |
English PDF |
| GB/T 6730.44-2017 |
iron ores—Determination of zinc content—1-(2-pyridylazo)-2-naphthol spectrophotometric method 铁矿石 锌含量的测定 1-(2-吡啶偶氮)-2-萘酚分光光度法 |
China National Standards iron |
English PDF |
| GB/T 6730.59-2017 |
iron ores－Determination of manganese content－Flame atomic absorption spectrometric method 铁矿石 锰含量的测定 火焰原子吸收光谱法 |
China National Standards iron |
English PDF |
| GB/T 14427-2017 |
Analysis of water used in boiler and cooling system—Determination of iron 锅炉用水和冷却水分析方法 铁的测定 |
China National Standards iron |
English PDF |
| GB/T 6730.27-2017 |
iron ores—Determination of fluorine content—Lanthanum-alizarin complexion spectrophotometric method 铁矿石 氟含量的测定 镧-茜素络合腙分光光度法 |
China National Standards iron |
English PDF |
| GB/T 34111-2017 |
Construction for iron and steel logistics internet public business information platform 钢铁物流互联网公共商务信息平台建设 |
China National Standards iron |
English PDF |
| GB/T 34113-2017 |
Technical specification for iron and steel logistics internet information interaction 钢铁物流互联网信息交互技术规范 |
China National Standards iron |
English PDF |
| GB/T 34033.1-2017 |
Ships and marine technology—Risk assessment on anti-fouling systems on ships—Part 1: Marine environmental risk assessment method of biocidally active substances used for anti-fouling systems on ships 船舶与海上技术 船舶防污底系统风险评估 第1部分：船舶防污底系统用防污活性物质的海洋环境风险评估方法 |
China National Standards iron |
English PDF |
| GB/T 34033.2-2017 |
Ships and marine technology—Risk assessment on anti-fouling systems on ships—Part 2:Marine environmental risk assessment method for anti-fouling systems on ships using biocidally active substances 船舶与海上技术 船舶防污底系统风险评估 第2部分：使用防污活性物质的船舶防污底系统的海洋环境风险评估方法 |
China National Standards iron |
English PDF |
| GB/T 34099-2017 |
Determination of aluminium, silicon, vanadium, nickel, iron, sodium, calcium, zinc and phosphorus in residual fuel oil—Inductively coupled plasma emission spectrometry method 残渣燃料油中铝、硅、钒、镍、铁、钠、钙、锌及磷含量的测定 电感耦合等离子发射光谱法 |
China National Standards iron |
English PDF |
| GB/T 34144-2017 |
Guidance on material efficiency considerations in environmentally conscious design of electrical and electronic products 在电子电气产品环境意识设计中考虑材料效率的导则 |
China National Standards iron |
English PDF |
| GB/T 34138-2017 |
Radiation protection instrumentation—Environmental, electromagnetic and mechanical performance requirements 辐射防护仪器 环境、电磁和机械性能要求 |
China National Standards iron |
English PDF |
| GB/T 33973-2017 |
Guides for energy efficiency assessment of raw material yard of iron and steel enterprise 钢铁企业原料场能效评估导则 |
China National Standards iron |
English PDF |
| GB/T 33909-2017 |
Methods for chemical analysis of platinum—Determination of palladium，rhodium，iridium，ruthenium，gold，silver，aluminium，bismuth，chromium，copper，iron，nickel，lead，magnesium，manganese，tin，zinc，silicon content—Inductively co 纯铂化学分析方法 钯、铑、铱、钌、金、银、铝、铋、铬、铜、铁、镍、铅、镁、锰、锡、锌、硅量的测定 电感耦合等离子体质谱法 |
China National Standards iron |
English PDF |
| GB/T 33913.2-2017 |
Method for chemical analysis of tris(triphenylphosphine) rhodium(I) chloride—Part 2：The determination of lead，iron，copper，palladium，platinum，aluminium，nickel，magnesium，zinc content—Inductively coupled plasma atomic emission spectrome 三苯基膦氯化铑化学分析方法 第2部分：铅、铁、铜、钯、铂、铝、镍、镁、锌量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards iron |
English PDF |
| GB/T 12454-2017 |
Method of evaluating luminous environment 光环境评价方法 |
China National Standards iron |
English PDF |
| GB/T 33979-2017 |
Test methods for proton exchange membrane fuel cell power system at subzero environment 质子交换膜燃料电池发电系统低温特性测试方法 |
China National Standards iron |
English PDF |
| GB/Z 17799.6-2017 |
Electromagnetic compatibility—Generic standards—Immunity for power station and substation environments 电磁兼容 通用标准 发电厂和变电站环境中的抗扰度 |
China National Standards iron |
English PDF |
| GB/T 1149.15-2017 |
Internal combustion engines—Piston rings—Part 15: Coil-spring-loaded oil control rings of narrow width made of cast iron 内燃机 活塞环 第15部分：薄型铸铁螺旋撑簧油环 |
China National Standards iron |
English PDF |
| GB/T 33874-2017 |
Environmental protection requirements for toner manufacturing processes and products 墨粉制造过程及产品环境保护要求 |
China National Standards iron |
English PDF |
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