China Mi GB Standards English PDF List

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China "Mi" GB Standards English PDF List:

Standard Code	Standard Title	Standard Class	Order
GB/T 14445-2017	Carbide products for coal Mining tools 煤炭采掘工具用硬质合金制品	China National Standards Mi	English PDF
GB/T 34418-2017	Fundamental terMinology in language training service 语言培训服务基本术语	China National Standards Mi	English PDF
GB/T 34489-2017	AluMinium alloys extruded profiles and sheets for roofing structure 屋面结构用铝合金挤压型材和板材	China National Standards Mi	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 Mi	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 Mi	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 Mi	English PDF
GB/T 10574.11-2017	Methods for cheMical analysis of tin-lead solders—Part 11：Determination of phosphorus content—Crystal violet phosphorus-vanadium-molybdeum heteropoly acid spectrophotometry 锡铅焊料化学分析方法第11部分：磷量的测定结晶紫-磷钒钼杂多酸分光光度法	China National Standards Mi	English PDF
GB/T 10574.8-2017	Methods for cheMical analysis of tin-lead solders—Part 8：Determination of zinc content—Flame atomic absorption spectrometric method 锡铅焊料化学分析方法第8部分：锌量的测定火焰原子吸收光谱法	China National Standards Mi	English PDF
GB 9840-2017	Feed additive vitaMin D3 （powder form）饲料添加剂维生素D3（微粒）	China National Standards Mi	English PDF
GB 23386-2017	Feed additive-VitaMin A palmitate （powder form）饲料添加剂维生素A棕榈酸酯（粉）	China National Standards Mi	English PDF
GB 34464-2017	Feed additive—Menadione dimethylpyriMidinol bisulfite 饲料添加剂二甲基嘧啶醇亚硫酸甲萘醌	China National Standards Mi	English PDF
GB 7294-2017	Feed additive-Menadione sodium bisulfite(vitaMin K3) 饲料添加剂亚硫酸氢钠甲萘醌(维生素K3)	China National Standards Mi	English PDF
GB 7301-2017	Feed additive—NicotinaMide 饲料添加剂烟酰胺	China National Standards Mi	English PDF
GB/T 34493-2017	AluMinium alloys extruded rods for easy-cutting 易切削铝合金挤压棒材	China National Standards Mi	English PDF
GB/T 34492-2017	Technical specification of 500kA aluMinum electrolytic cell 500kA铝电解槽技术规范	China National Standards Mi	English PDF
GB/T 34446-2017	Performance requirements of fixed LED luMinaires for general lighting 固定式通用LED灯具性能要求	China National Standards Mi	English PDF
GB/T 34450-2017	Modularization design for household and siMilar electrical appliances—General principles 家用和类似用途电器的模块化设计通则	China National Standards Mi	English PDF
GB/T 34333-2017	Refractory products—DeterMination by inductively coupled plasma atomic emission spectrometry(ICP-AES) 耐火材料电感耦合等离子体原子发射光谱（ICP-AES）分析方法	China National Standards Mi	English PDF
GB/T 20899.14-2017	Methods for cheMical analysis of gold ores-Part 14: Determination of thallium content - Inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry 金矿石化学分析方法第14部分：铊量的测定电感耦合等离子体原子发射光谱法和电感耦合等离子体质谱法	China National Standards Mi	English PDF
GB/T 6901-2017	CheMical analysis of silica refractories 硅质耐火材料化学分析方法	China National Standards Mi	English PDF
GB/T 20899.13-2017	Methods for cheMical analysis of gold ores-Part 13: Determination of lead,zinc,bismuth,cadminum,chromium,arsenic and mercury contents —Inductively coupled plasma atomic emission spectrometry 金矿石化学分析方法第13部分：铅、锌、铋、镉、铬、砷和汞量的测定电感耦合等离子体原子发射光谱法	China National Standards Mi	English PDF
GB/T 34326-2017	Surface cheMical analysis—Depth profiling—Methods for ion beam alignment and the associated measurement of current or current density for depth profiling in AES and XPS 表面化学分析深度剖析 AES和XPS深度剖析时离子束对准方法及其束流或束流密度测量方法	China National Standards Mi	English PDF
GB/T 34378-2017	DynaMic balance test method for motorcycle tyres 摩托车轮胎动平衡试验方法	China National Standards Mi	English PDF
GB/T 4698.27-2017	Methods for cheMical analysis of titanium sponge, titanium and titanium alloys—Part 27：Determination of neodymium content—Inductively coupled plasma atomic emission spectrometry 海绵钛、钛及钛合金化学分析方法第27部分：钕量的测定电感耦合等离子体原子发射光谱法	China National Standards Mi	English PDF
GB/T 4698.3-2017	Methods for cheMical analysis of titanium sponge, titanium and titanium alloys—Part 3：Determination of silicon content—Molybdenum blue spectrophotometry 海绵钛、钛及钛合金化学分析方法第3部分：硅量的测定钼蓝分光光度法	China National Standards Mi	English PDF
GB/T 4698.22-2017	Methods for cheMical analysis of titanium sponge ,titanium and titanium alloys—Part 22：Determination of niobium content—5-Br-PADAP spectrophotometry and inductively coupled plasma atomic emission spectrometry 海绵钛、钛及钛合金化学分析方法第22部分：铌量的测定 5-Br-PADAP分光光度法和电感耦合等离子体原子发射光谱法	China National Standards Mi	English PDF
GB/T 4698.28-2017	Methods for cheMical analysis of titanium sponge, titanium and titanium alloys—Part 28：Determination of ruthenium content—Inductively coupled plasma atomic emission spectrometry 海绵钛、钛及钛合金化学分析方法第28部分：钌量的测定电感耦合等离子体原子发射光谱法	China National Standards Mi	English PDF
GB/T 4698.1-2017	Methods for cheMical analysis of titanium sponge, titanium and titanium alloys—Part 1：Determination of copper content—Flame atomic absorption spectrometry 海绵钛、钛及钛合金化学分析方法第1部分：铜量的测定火焰原子吸收光谱法	China National Standards Mi	English PDF
GB/T 1819.11-2017	Methods for cheMical analysis of tin concentrates—Part 11：Determination of aluminium oxide content—Chromazuzal S spectrophotometric method 锡精矿化学分析方法第11部分：三氧化二铝量的测定铬天青S分光光度法	China National Standards Mi	English PDF
GB/T 34383-2017	SeMi-straight side press 半闭式压力机	China National Standards Mi	English PDF
GB/T 34391-2017	Reciprocating positive displacement pump for petroleum, petrocheMical and natural gas industries 石油、石化和天然气工业用往复泵	China National Standards Mi	English PDF
GB/T 34357-2017	Non-destructive testing—TerMinology—Terms used in magnetic flux leakage testing 无损检测术语漏磁检测	China National Standards Mi	English PDF
GB/T 34654-2017	Rules for drafting electrotechnical terMinology standards 电工术语标准编写规则	China National Standards Mi	English PDF
GB/T 29024.4-2017	DeterMination of particle size distribution－Single particle light interaction methods－Part 4: Light scattering airborne particle counter for clean spaces 粒度分析单颗粒的光学测量方法第4部分：洁净间光散射尘埃粒子计数器	China National Standards Mi	English PDF
GB/T 22511-2017	AluMinum bottles packaging for chemical products 化工产品包装用铝瓶	China National Standards Mi	English PDF
GB/T 34363-2017	Non-destructive testing—Test method for fabricating and checking aluMinum alloy ultrasonic standard reference blocks 无损检测铝合金超声标准试块制作和校验方法	China National Standards Mi	English PDF
GB/T 14048.13-2017	Low-voltage switchgear and controlgear—Part 5-3: Control circuit devices and switching elements—Requirements for proxiMity devices with defined behaviour under fault conditions (PDDB) 低压开关设备和控制设备第5-3部分：控制电路电器和开关元件在故障条件下具有确定功能的接近开关（PDDB）的要求	China National Standards Mi	English PDF
GB/T 18211-2017	General requirements for safety of electrical Micro-machines 微电机安全通用要求	China National Standards Mi	English PDF
GB/T 1303.5-2017	Industrial rigid laMinated sheets based on thermosetting resins for electrical purposes—Part 5: Requirements for rigid laminated sheets based on melamine resins 电气用热固性树脂工业硬质层压板第5部分：三聚氰胺树脂硬质层压板	China National Standards Mi	English PDF
GB/T 5019.12-2017	Specification for insulating materials based on Mica— Part 12：Glass fabric backup epoxy dry mica tape with high porosity 以云母为基的绝缘材料第12部分：高透气性玻璃布补强环氧少胶云母带	China National Standards Mi	English PDF
GB/T 34370.2-2017	Nondestructive testing of amusement equipments－Part 2:Visual exaMination 游乐设施无损检测第2部分：目视检测	China National Standards Mi	English PDF
GB/T 2099.9-2017	Plugs and socket-outlets for household and siMilar purposes—Part 2-9: Particular requirements for socket-outlets for information 家用和类似用途插头插座第2-9部分：信息插座的特殊要求	China National Standards Mi	English PDF
GB/Z 30556.3-2017	Electromagnetic compatibility—Installation and Mitigation guidelines－HEMP protection concepts 电磁兼容安装和减缓导则高空核电磁脉冲（HEMP）的防护概念	China National Standards Mi	English PDF
GB/T 15902-2017	Conveyor belts—DeterMination of elastic and permanent elongation and calculation of elastic modulus 输送带弹性伸长率和永久伸长率的测定及弹性模量的计算	China National Standards Mi	English PDF
GB/T 34365-2017	Non-destructive testing—TerMinology—Terms used in industrial computed tomography testing 无损检测术语工业计算机层析成像(CT)检测	China National Standards Mi	English PDF
GB/T 34579-2017	Methods of measurement and liMits for radiated disturbances from plasma display panel equipment in the frequency range 150kHz to 30MHz 等离子显示设备150kHz～30MHz辐射骚扰限值和测量方法	China National Standards Mi	English PDF
GB/T 34640.1-2017	Classification and recycling and utilization of wrought aluMinium and aluminium alloy scraps—Part 1：Classification of scraps 变形铝及铝合金废料分类、回收与利用第1部分：废料的分类	China National Standards Mi	English PDF
GB/T 4698.20-2017	Methods for cheMical analysis of titanium sponge, titanium and titanium alloys—Part 4：Determination of manganese content—Potassium periodate spectrophotometry and inductively coupled plasma atomic emission spectrometry 海绵钛、钛及钛合金化学分析方法第4部分：锰量的测定高碘酸盐分光光度法和电感耦合等离子体原子发射光谱法	China National Standards Mi	English PDF
GB/T 13747.15-2017	Methods for cheMical analysis of zirconium and zirconium alloys—Part 15：Determination of boron content—Curcumin spectrophotometry 锆及锆合金化学分析方法第15部分：硼量的测定姜黄素分光光度法	China National Standards Mi	English PDF
GB/T 4698.19-2017	Methods for cheMical analysis of titanium sponge, titanium and titanium alloys—Part 19：Determination of molybdenum content—Thiocyanate-differential spectrophotometry 海绵钛、钛及钛合金化学分析方法第19部分：钼量的测定硫氰酸盐示差光度法	China National Standards Mi	English PDF
GB/T 4698.5-2017	Methods for cheMical analysis of titanium sponge, titanium and titanium alloys—Part 5：Determination of molybdenum content—Thiocyanate spectrophotometry and inductively coupled plasma atomic emission spectrometry 海绵钛、钛及钛合金化学分析方法第5部分：钼量的测定硫氰酸盐分光光度法和电感耦合等离子体原子发射光谱法	China National Standards Mi	English PDF
GB/T 13747.21-2017	Methods for cheMical analysis of zirconium and zirconium alloys—Part 21：Determination of hydrogen content—Inert gas fusion-infrared absorption or thermal conductivity method 锆及锆合金化学分析方法第21部分：氢量的测定惰气熔融红外吸收法/热导法	China National Standards Mi	English PDF
GB/T 13747.8-2017	Methods for cheMical analysis of zirconium and zirconium alloys—Part 8：Determination of cobalt content—Nitroso-R-salt spectrophotometry 锆及锆合金化学分析方法第8部分：钴量的测定亚硝基R盐分光光度法	China National Standards Mi	English PDF
GB/T 34574-2017	LiMits and measurements of electromagnetic emission for high-speed train 高速列车电磁发射限值与测量	China National Standards Mi	English PDF
GB/T 1819.17-2017	Methods for cheMical analysis of tin concentrates—Part 17：Determination of mercury content—Atomic fluorescence spectrometric method 锡精矿化学分析方法第17部分：汞量的测定原子荧光光谱法	China National Standards Mi	English PDF
GB/T 1819.15-2017	Methods for cheMical analysis of tin concentrates—Part 15：Determination of fluorine content—The ion-selective electrode method 锡精矿化学分析方法第15部分：氟量的测定离子选择电极法	China National Standards Mi	English PDF
GB/T 13747.11-2017	Methods for cheMical analysis of zirconium and zirconium alloys—Part 11: Determination of molybdenum content—Thiocyanate spectrophotometry 锆及锆合金化学分析方法第11部分：钼量的测定硫氰酸盐分光光度法	China National Standards Mi	English PDF
GB/T 34640.3-2017	Classification and recycling and utilization of wrought aluMinium and aluminium alloy scraps—Part 3：Utilization of scraps 变形铝及铝合金废料分类、回收与利用第3部分：废料的利用	China National Standards Mi	English PDF
GB/T 34642-2017	Continuous casting machine for aluMinum ingots 铝锭连续铸造机组	China National Standards Mi	English PDF
GB/T 34640.2-2017	Classification and recycling and utilization of wrought aluMinium and aluminium alloy scraps—Part 2：Recycling of scraps 变形铝及铝合金废料分类、回收与利用第2部分：废料的回收	China National Standards Mi	English PDF
GB/T 1819.7-2017	Methods for cheMical analysis of tin concentrates—Part 7:Determination of bismuth content—Flame atomic absorption spectrometric method 锡精矿化学分析方法第7部分：铋量的测定火焰原子吸收光谱法	China National Standards Mi	English PDF
GB/T 34643-2017	Sintered metal porous materials—DeterMination of air filter permeability 烧结金属多孔材料气体过滤性能的测定	China National Standards Mi	English PDF
GB/T 3250-2017	Shearing and riveting test method of wires and rods for the aluMinum and aluminum-alloy rivets 铝及铝合金铆钉用线材和棒材剪切与铆接试验方法	China National Standards Mi	English PDF
GB/T 34630.1-2017	Friction stir welding—AluMinium and its alloys—Part 1：Terminology and definition 搅拌摩擦焊铝及铝合金第1部分：术语及定义	China National Standards Mi	English PDF
GB/T 4698.8-2017	Methods for cheMical analysis of titanium sponge, titanium and titanium alloys—Part 8：Determination of aluminum content—Separation with sodium hydroxide-EDTA complex-metric titration and inductively coupled plasma atomic emission spectrometry 海绵钛、钛及钛合金化学分析方法第8部分：铝量的测定碱分离-EDTA络合滴定法和电感耦合等离子体原子发射光谱法	China National Standards Mi	English PDF
GB/T 13747.13-2017	Methods for cheMical analysis of zirconium and zirconium alloys—Part 13: Determination of lead content—Polarography 锆及锆合金化学分析方法第13部分：铅量的测定极谱法	China National Standards Mi	English PDF
GB/T 34630.5-2017	Friction stir welding—AluMinium and its alloys—Part 5：Quality and inspection requirements 搅拌摩擦焊铝及铝合金第5部分：质量与检验要求	China National Standards Mi	English PDF
GB/T 34630.3-2017	Friction stir welding—AluMinium and its alloys—Part 3：Qualification of welding operators 搅拌摩擦焊铝及铝合金第3部分：焊接操作工的技能评定	China National Standards Mi	English PDF
GB/T 34630.4-2017	Friction stir welding—AluMinium and its alloys—Part 4：Specification and qualification of welding procedures 搅拌摩擦焊铝及铝合金第4部分：焊接工艺规程及评定	China National Standards Mi	English PDF
GB/T 34629-2017	Conveyor belts—DeterMination of minimum pulley diameters 输送带最小滚筒直径的确定	China National Standards Mi	English PDF
GB/T 1819.13-2017	Methods for cheMical analysis of tin concentrates—Part 13: Determination of magnesium oxide content,calcium oxide content—Flame atomic absorption spectrometric method 锡精矿化学分析方法第13部分：氧化镁、氧化钙量的测定火焰原子吸收光谱法	China National Standards Mi	English PDF
GB/T 34641-2017	Non-destructive testing—Test method for deterMining image quality in direct thermal neutron radiographic examination 无损检测直接热中子照相检测的像质测定方法	China National Standards Mi	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 Mi	English PDF
GB/T 1819.8-2017	Methods for cheMical analysis of tin concentrates—Part 8：Determination of zinc content—Flame atomic absorption spectrometric method 锡精矿化学分析方法第8部分：锌量的测定火焰原子吸收光谱法	China National Standards Mi	English PDF
GB/T 4698.18-2017	Methods for cheMical analysis of titanium sponge, titanium and titanium alloys—Part 18：Determination of tin content—Flame atomic absorption spectrometry 海绵钛、钛及钛合金化学分析方法第18部分：锡量的测定火焰原子吸收光谱法	China National Standards Mi	English PDF
GB/T 4698.24-2017	Methods for cheMical analysis of titanium sponge, titanium and titanium alloys—Part 24：Determination of nickel content—Dimethylglyoxime spectrophotometry and inductively coupled plasma atomic emission spectrometry 海绵钛、钛及钛合金化学分析方法第24部分：镍量的测定丁二酮肟分光光度法和电感耦合等离子体原子发射光谱法	China National Standards Mi	English PDF
GB/T 1819.10-2017	Methods for cheMical analysis of tin concentrates—Part 10: Determination of sulfur content—High frequency combustion with infrared absorption method and potassium iodate titrimetric method 锡精矿化学分析方法第10部分：硫量的测定高频感应炉燃烧红外吸收法和碘酸钾滴定法	China National Standards Mi	English PDF
GB/T 4698.9-2017	Methods for cheMical analysis of titanium sponge,titanium and titanium alloys—Part 9：Determination of tin content—Potassium iodate titration and inductively coupled plasma atomic emission spectrometry 海绵钛、钛及钛合金化学分析方法第9部分：锡量的测定碘酸钾滴定法和电感耦合等离子体原子发射光谱法	China National Standards Mi	English PDF
GB/T 18690.3-2017	Agricultural irrigation equipment—Filters for Microirrigation—Part 3:Automatic flushing strainer-type filters and disc filters 农业灌溉设备微灌用过滤器第3部分：自动冲洗网式过滤器和叠片式过滤器	China National Standards Mi	English PDF
GB/T 34620-2017	Category Ⅰ lithium broMide absorption heat pump unit 第一类溴化锂吸收式热泵机组	China National Standards Mi	English PDF
GB/T 18690.2-2017	Agricultural irrigation equipment—Filters for Microirrigation—Part 2: Strainer-type filters and disc filters 农业灌溉设备微灌用过滤器第2部分：网式过滤器和叠片式过滤器	China National Standards Mi	English PDF
GB/T 10942-2017	Refrigerated bulk Milk tanks 散装乳冷藏罐	China National Standards Mi	English PDF
GB/T 34630.2-2017	Friction stir welding—AluMinium and its alloys—Part 2：Design of weld joints 搅拌摩擦焊铝及铝合金第2部分：焊接接头设计	China National Standards Mi	English PDF
GB/T 34443-2017	TerMinology of artificial leather and synthetic leather 人造革与合成革术语	China National Standards Mi	English PDF
GB/T 19362.2-2017	Test conditions for bridge-type Milling machines—Testing of the accuracy—Part 2: Travelling bridge (gantry-type) machines 龙门铣床检验条件精度检验第2部分：龙门移动式铣床	China National Standards Mi	English PDF
GB/T 1479.3-2017	Metallic powders－DeterMination of apparent density－Part 3: Oscillating funnel method 金属粉末松装密度的测定第3部分：振动漏斗法	China National Standards Mi	English PDF
GB/T 13747.14-2017	Methods for cheMical analysis of zirconium and zirconium alloys—Part 14：Determination of uranium content—Polarography 锆及锆合金化学分析方法第14部分：铀量的测定极谱法	China National Standards Mi	English PDF
GB/T 13747.19-2017	Methods for cheMical analysis of zirconium and zirconium alloys—Part19：Determination of titanium content—Diantipyrylmethane spectrophotometry and the inductively coupled plasma atomic emission spectrometry 锆及锆合金化学分析方法第19部分：钛量的测定二安替比林甲烷分光光度法和电感耦合等离子体原子发射光谱法	China National Standards Mi	English PDF
GB/T 13747.16-2017	Methods for cheMical analysis of zirconium and zirconium alloys—Part 16：Determination of chloric content—Silver chloride nephelometry and ion selective electrode method 锆及锆合金化学分析方法第16部分：氯量的测定氯化银浊度法和离子选择性电极法	China National Standards Mi	English PDF
GB/T 13747.25-2017	Methods for cheMical analysis of zirconium and zirconium alloys—Part 25：Determination of niobium content—2-(5-bromo-2-pyridylazo)-5-diethylam inophenol spectrophotometry and inductively coupled plasma atomic emission spectrometry 锆及锆合金化学分析方法第25部分：铌量的测定 5-Br-PADAP分光光度法和电感耦合等离子体原子发射光谱法	China National Standards Mi	English PDF
GB/T 13747.17-2017	Methods for cheMical analysis of zirconium and zirconium alloys—Part 17：Determination of cadmium content—Polarography 锆及锆合金化学分析方法第17部分：镉量的测定极谱法	China National Standards Mi	English PDF
GB/T 19587-2017	DeterMination of the specific surface area of solids by gas adsorption using the BET method 气体吸附BET法测定固态物质比表面积	China National Standards Mi	English PDF
GB/T 13747.22-2017	Methods for cheMical analysis of zirconium and zirconium alloys—Part 22：Determination of oxygen and nitrogen contents—Inert gas fusion-infrared absorption and thermal conductivity method 锆及锆合金化学分析方法第22部分：氧量和氮量的测定惰气熔融红外吸收法/热导法	China National Standards Mi	English PDF
GB/T 13747.24-2017	Methods for cheMical analysis of zirconium and zirconium alloys—Part 24：Determination of carbon content—Infrared absorption method after high frequency combustion 锆及锆合金化学分析方法第24部分：碳量的测定高频燃烧红外吸收法	China National Standards Mi	English PDF
GB/T 34444-2017	Paper and board—DeterMination of the layer peel strength 纸和纸板层间剥离强度的测定	China National Standards Mi	English PDF
GB/T 34455-2017	Paper,board and pulps—DeterMination of 2,2-bis(4-hydroxyphenyl) propane (bisphenol A )—Liquid chromatography 纸、纸板和纸浆 2,2-二(4-羟基苯基)丙烷(双酚A)的测定液相色谱法	China National Standards Mi	English PDF
GB/T 13747.1-2017	Methods for cheMical analysis of zirconium and zirconium alloys—Part 1：Determination of tin content—Potassium iodate titration and phenylfluorone-polyethylene glycoloctyl phenyl ether spectrophotometry 锆及锆合金化学分析方法第1部分：锡量的测定碘酸钾滴定法和苯基荧光酮-聚乙二醇辛基苯基醚分光光度法	China National Standards Mi	English PDF
GB/T 4698.23-2017	Methods for cheMical analysis of titanium sponge，titanium and titanium alloys—Part 23：Determination of palladium content—Stannous choride-potassium iodide spectrophotometry and inductively coupled plasma atomic emission spectrometry 海绵钛、钛及钛合金化学分析方法第23部分：钯量的测定氯化亚锡-碘化钾分光光度法和电感耦合等离子体原子发射光谱法	China National Standards Mi	English PDF
GB/T 4698.13-2017	Methods for cheMical analysis of titanium sponge,titanium and titanium alloys—Part 13：Determination of zirconium content—EDTA complexometric titration and inductively coupled plasma atomic emission spectrometry 海绵钛、钛及钛合金化学分析方法第13部分：锆量的测定 EDTA络合滴定法和电感耦合等离子体原子发射光谱法	China National Standards Mi	English PDF
GB/T 4437.2-2017	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 Mi	English PDF

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