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  •  China "EL" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 21840-2008 Vulcanizing accELerator TBBS
    硫化促进剂 TBBS    		 China National Standards
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    GB/T 18013-2008 Raw natural rubber - Determination of accELerated storage-hardening number
    天然生胶 加速贮存硬化值的测定    		 China National Standards
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    GB/T 1685-2008 Rubber，vulcanized or thermoplastic - Determination of stress rELaxation in compression at ambient and at elevated temperatures
    硫化橡胶或热塑性橡胶 在常温和高温下压缩应力松弛的测定    		 China National Standards
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    GB/T 15355-2008 Chemical reagent - NickEL chloride hexahydrate
    化学试剂 六水合氯化镍(氯化镍)    		 China National Standards
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    GB/T 9291-2008 Surface active agents - Method of testing of the restraining effect of levELling agents for disperse dyes on dyeing polyester textile under high temperature conditions
    表面活性剂 高温条件下分散染料染聚酯织物时匀染剂的抑染作用测试法    		 China National Standards
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    GB/T 21874-2008 ELastomeric seals - Requirements for materials for pipe joint seals used in water and drainage applications - Thermoplastic elastomers
    弹性体密封件 排水管道接口密封件材料要求 热塑性弹性体    		 China National Standards
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    GB/T 21873-2008 Rubber seals - Joint rings for water supply, drainage and sewerage pipELines - Specification for materials
    橡胶密封件 给、排水管及污水管道用接口密封圈 材料规范    		 China National Standards
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    GB/T 21868.3-2008 Pigments and extenders - Methods of dispersion for assessment of dispersion characteristics - Part 3: Dispersion using a high-speed impELler mill
    颜料和体质颜料 评定分散性用的分散方法 第3部分:用高速搅拌机分散    		 China National Standards
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    GB/T 21283.5-2008 Rotary shaft lip-type seals incorporating thermoplastic sealing ELements - Part 5: Identification of visual imperfections
    密封元件为热塑性材料的旋转轴唇形密封圈 第5部分 外观缺陷的识别    		 China National Standards
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    GB/T 21283.4-2008 Rotary shaft lip-type seals incorporating thermoplastic sealing ELements - Part 4: Performance test procedures
    密封元件为热塑性材料的旋转轴唇形密封圈 第4部分：性能试验程序    		 China National Standards
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    GB/T 21283.3-2008 Rotary shaft lip-type seals incorporating thermoplastic sealing ELements - Part 3 :Storage，handling and installation
    密封元件为热塑性材料的旋转轴唇形密封圈 第3部分：贮存、搬运和安装    		 China National Standards
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    GB/T 13871.3-2008 Rotary shaft lip-type seals incorporating ELastomeric sealing elements - Part 3: Storage，handling and installation
    密封元件为弹性体材料的旋转轴唇形密封圈 第3部分：贮存、搬运和安装    		 China National Standards
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    GB/T 13452.4-2008 Paints and varnishes - Determination of resistance to filiform corrosion on steEL
    色漆和清漆 钢铁表面上涂膜的耐丝状腐蚀试验    		 China National Standards
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    GB/T 9943-2008 High-speed tool steELs
    高速工具钢    		 China National Standards
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    GB/T 9445-2008 Non-destructive testing - Qualification and certification of personnEL
    无损检测 人员资格鉴定与认证    		 China National Standards
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    GB/T 8749-2008 Hot-rolled quality carbon structural steEL strips
    优质碳素结构钢热轧钢带    		 China National Standards
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    GB/T 7731.7-2008 Ferrotungsten - Determination of tin content - Phenylfluorone photometric method and inductivELy coupled plasma-atomic emission spectrometry
    钨铁 锡含量的测定 苯基荧光酮光度法和电感耦合等离子体原子发射光谱法    		 China National Standards
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    GB/T 7731.14-2008 Ferrotungsten - Determination of lead content - The polarographic method and inductivELy coupled plasma-atomic emission spectrometry
    钨铁 铅含量的测定 极谱法和电感耦合等离子体原子发射光谱法    		 China National Standards
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    GB/T 6803-2008 Test method for drop-weight test to determine nil-ductility transition temperature of ferritic steELs
    铁素体钢的无塑性转变温度落锤试验方法    		 China National Standards
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    GB/T 6402-2008 SteEL forgings - Method for ultrasonic testing
    钢锻件超声检测方法    		 China National Standards
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    GB/T 6396-2008 Clad steEL plates - Mechanical and technological test
    复合钢板力学及工艺性能试验方法    		 China National Standards
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    GB/T 4162-2008 Forged and rolled steEL bars - Method for ultrasonic testing
    锻轧钢棒超声检测方法    		 China National Standards
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    GB/T 3091-2008 WELded steel pipes for low pressure liquid delivery
    低压流体输送用焊接钢管    		 China National Standards
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    GB/T 3089-2008 Thinnest-wall seamless tubes of stainless steEL
    不锈钢极薄壁无缝钢管    		 China National Standards
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    GB/T 3078-2008 Quality structural steEL cold drawn bars
    优质结构钢冷拉钢材    		 China National Standards
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    GB/T 3074.3-2008 Method for the determination of the oxidation resistance of graphite ELectrodes
    石墨电极氧化性测定方法    		 China National Standards
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    GB/T 3074.2-2008 Method for the determination of the ELastic modulus of graphite electrodes
    石墨电极弹性模量测定方法    		 China National Standards
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    GB/T 3074.1-2008 Method for the determination of the flexure strength of graphite ELectrodes
    石墨电极抗折强度测定方法    		 China National Standards
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    GB/T 223.9-2008 Iron, steEL and alloy - Determination of aluminium content - Chrom azurol S photometric method
    钢铁及合金 铝含量的测定 铬天青S分光光度法    		 China National Standards
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    GB/T 223.75-2008 Iron,steEL and alloy - Determination of boron content - Methanol distillation-curcumin photometric method
    钢铁及合金 硼含量的测定 甲醇蒸馏-姜黄素光度法    		 China National Standards
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    GB/T 223.73-2008 Iron, steEL and alloy - Determination of iron contents - Titanium trichloride-potassium dichromate titration method
    钢铁及合金 铁含量的测定 三氯化钛-重铬酸钾滴定法    		 China National Standards
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    GB/T 223.72-2008 Iron, steEL and alloy - Determination of sulfur content - Gravimetric method
    钢铁及合金 硫含量的测定 重量法    		 China National Standards
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    GB/T 223.70-2008 Iron, steEL and alloy - Determination of iron contents - O-phenanthroline spectrophotometric method
    钢铁及合金 铁含量的测定 邻二氮杂菲分光光度法    		 China National Standards
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    GB/T 223.69-2008 Iron, steEL and alloy - Determination of carbon contents - Gas-volumetric method after combustion in the pipe furnace
    钢铁及合金 碳含量的测定 管式炉内燃烧后气体容量法    		 China National Standards
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    GB/T 223.67-2008 Iron, steEL and alloy - Determination of sulfur content -Methylene blue spectrophotometric method
    钢铁及合金 硫含量的测定 次甲基蓝分光光度法    		 China National Standards
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    GB/T 223.64-2008 Iron, steEL and alloyed - Determination of manganese content - Flame atomic absorption spectrometric method
    钢铁及合金 锰含量的测定 火焰原子吸收光谱法    		 China National Standards
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    GB/T 223.55-2008 Iron, steEL and alloy - Determination of tellurium content - Oscillo-polarographic method
    钢铁及合金 碲含量的测定 示波极谱法    		 China National Standards
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    GB/T 223.43-2008 Iron, steEL and alloy - Determination of tungsten content - Gravimetryc method and spectrophotometric method
    钢铁及合金 钨含量的测定 重量法和分光光度法    		 China National Standards
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    GB/T 223.31-2008 Iron, steEL and alloy - Determination of arsenic content -Distillation-molybdenum blue spectrophotometric method
    钢铁及合金 砷含量的测定 蒸馏分离-钼蓝分光光度法    		 China National Standards
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    GB/T 223.29-2008 Iron, steEL and alloy - Determination of lead content - Carrier precipitation-xylenol orange spectrophotometric method
    钢铁及合金 铅含量的测定 载体沉淀-二甲酚橙分光光度法    		 China National Standards
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    GB/T 223.26-2008 Iron, steEL and alloy - Determination of molybdenum content - The thiocyanate spectrophotometric method
    钢铁及合金 钼含量的测定 硫氰酸盐分光光度法    		 China National Standards
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    GB/T 223.23-2008 Iron, steEL and alloy - Determination of nickel content - The dimethylglyoxime spectrophotometric method
    钢铁及合金 镍含量的测定 丁二酮肟分光光度法    		 China National Standards
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    GB/T 21839-2008 SteEL for prestressed concrete - Test methods
    预应力混凝土用钢材试验方法    		 China National Standards
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    GB/T 21837-2008 Practice for ELectromagnetic examination of ferromagnetic steel wire rope
    铁磁性钢丝绳电磁检测方法    		 China National Standards
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    GB/T 21835-2008 Dimensions and masses per unit length of wELded steel pipes
    焊接钢管尺寸及单位长度重量    		 China National Standards
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    GB/T 21834-2008 Medium and low alloy steEL - Determination of the distribution of multi-element contents - Original position statistic distribution analysis method
    中低合金钢 多元素成分分布的测定 金属原位统计分布分析法    		 China National Standards
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    GB/T 21833-2008 Austenitic - Ferritic (duplex) grade stainless steEL seamless tubes and pipes
    奥氏体 铁素体型双相不锈钢无缝钢管    		 China National Standards
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    GB/T 21832-2008 Austenitic - Ferritic (duplex) grade stainless steEL welded tubes and pipes
    奥氏体 铁素体型双相不锈钢焊接钢管    		 China National Standards
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    GB/T 2101-2008 General requirement of acceptance, packaging, marking, and certification for section steEL
    型钢验收、包装、标志及质量证明书的一般规定    		 China National Standards
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    GB/T 18876.3-2008 Standard practice for determining the metallographical constituent and inclusion content of steELs and other metals by automatic image analysis - Part 3: Determining the carbides rating in steels by automatic image analysis and stereology
    应用自动图像分析测定钢和其它金属中金相组织、夹杂物含量和级别的标准试验方法 第3部分 钢中碳化物级别的图像分析与体视学测定    		 China National Standards
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    GB/T 18704-2008 Stainless steEL clad pipes for structural purposes
    结构用不锈钢复合管    		 China National Standards
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    GB/T 17395-2008 Dimensions,shapes,masses,and tolerances of seamless steEL tubes
    无缝钢管尺寸、外形、重量及允许偏差    		 China National Standards
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    GB/T 16444-2008 Planar double-envELoping worm gearing reducer
    平面二次包络环面蜗杆减速器    		 China National Standards
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    GB/T 15712-2008 Microalloyed medium carbon steELs
    非调质机械结构钢    		 China National Standards
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    GB/T 13793-2008 SteEL pipes with a longitudinal electric (resistance) weld
    直缝电焊钢管    		 China National Standards
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    GB/T 13314-2008 General specifications of forged steEL work rolls for cold rolling
    锻钢冷轧工作辊 通用技术条件    		 China National Standards
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    GB/T 12771-2008 WELded stainless steel pipes for liquid delivery
    流体输送用不锈钢焊接钢管    		 China National Standards
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    GB/T 12605-2008 Non-destructive testing － Test methods for radiographic testing of circumferential fusion-wELded butt joints in metallic pipes and tubes
    无损检测 金属管道熔化焊环向对接接头射线照相检测方法    		 China National Standards
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    GB/T 15575-2008 SteEL products standard designation
    钢产品标记代号    		 China National Standards
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    GB/T 17748-2008 Aluminium-plastic composite panEL for curtain wall
    建筑幕墙用铝塑复合板    		 China National Standards
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    GB/T 2539-2008 Petroleum waxes - Determination of mELting point-cooling curve method
    石油蜡熔点的测定 冷却曲线法    		 China National Standards
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    GB/T 21863-2008 GEL permeation chromatography(GPC) - Tetrahydrofuran as elution solvent
    凝胶渗透色谱法(GPC) 用四氢呋喃做淋洗液    		 China National Standards
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    GB/T 21816-2008 Testing of chemicals - Inherent biodegradability - Zahn-WELlens test
    化学品 固有生物降解性 赞恩-惠伦斯试验    		 China National Standards
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    GB/T 21797-2008 Testing of chemicals - DELayed neurotoxicity of organophosphorus substances 28-day repeated dose study
    化学品（有机磷化合物) 28天重复剂量的迟发性神经毒性试验    		 China National Standards
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    GB/T 21793-2008 Chemicals - Test method of in vitro mammalian cELl gene mutation
    化学品 体外哺乳动物细胞基因突变试验方法    		 China National Standards
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    GB/T 21789-2008 Petroleum products and other liquids - Determination of flash point -AbEL closed cup method
    石油产品和其他液体闪点的测定 阿贝尔闭口杯法    		 China National Standards
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    GB/T 21781-2008 Test methods for mELting point and melting range of chemical products - Capillary tube method
    化学品的熔点及熔融范围试验方法 毛细管法    		 China National Standards
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    GB/T 21780-2008 Partical size analysis - Sedimentation analysis in the gravitational fiELd - Pipette method
    粒度分析 重力场中沉降分析 吸液管法    		 China National Standards
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    GB/T 21779-2008 Test method for particle size distribution of metal powders and rELated compounds by light scattering
    金属粉末和相关化合物粒度分布的光散射试验方法    		 China National Standards
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    GB/T 21771-2008 Chemicals - Test method of combined repeated dose toxicity study with the reproduction/devELopmental toxicity screening
    化学品 重复剂量毒性合并生殖/发育毒性筛选试验方法    		 China National Standards
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    GB/T 21770-2008 Chemicals(organophosphorus substances) - Test method of dELayed neurotoxicity following acute exposure
    化学品（有机磷化合物） 急性染毒的迟发性神经毒性试验方法    		 China National Standards
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    GB/T 21768-2008 Chemical - Test method of DNA damage and repair/unscheduled DNA synthesis with mammalian cELls in vitro
    化学品 体外哺乳动物细胞DNA损伤与修复/非程序性DNA合成试验方法    		 China National Standards
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    GB/T 21767-2008 Chemical - Test method of unscheduled DNA synthesis (UDS) test with mammalian liver cELls In Vivo
    化学品 体内哺乳动物肝细胞非程序性DNA合成(UDS)试验方法    		 China National Standards
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    GB/T 21766-2008 Chemicals - Test method of reproduction/devELopmental toxicity screening
    化学品 生殖/发育毒性筛选试验方法    		 China National Standards
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    GB/T 21756-2008 Chemical products for industrial use - Determination of rELative temperature of spontaneous flammable of solids
    工业用途的化学产品 固体物质相对自燃温度的测定    		 China National Standards
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    GB/Z 21738-2008 Fundamental structures of one dimensional nanomaterials - High resolution ELectron microscopy characterization
    一维纳米材料的基本结构 高分辨透射电子显微镜检测方法    		 China National Standards
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    GB/T 19024-2008 Quality management - GuidELines for realizing financial and economic benefits
    质量管理 实现财务和经济效益的指南    		 China National Standards
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    GB/T 19017-2008 Quality management systems - GuidELines for configuration management
    质量管理体系 技术状态管理指南    		 China National Standards
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    GB/T 19012-2008 Quality management - Customer satisfaction - GuidELines for complaints handling in organizations
    质量管理 顾客满意 组织处理投诉指南    		 China National Standards
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    GB 21734-2008 Emergency shELter for earthquake disasters - Site and its facilities
    地震应急避难场所 场址及配套设施    		 China National Standards
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    GB/T 5644-2008 Flared couplings - Bulkhead union ELbow
    扩口式过板弯通管接头    		 China National Standards
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    GB/T 5642-2008 Flared couplings - WELd male
    扩口式焊接管接头    		 China National Standards
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    GB/T 5638-2008 Flared couplings - SwivEL branch tee
    扩口式组合三通管接头    		 China National Standards
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    GB/T 5634-2008 Flared couplings - SwivEL run tee
    扩口式组合弯通三通管接头    		 China National Standards
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    GB/T 5632-2008 Flared couplings - SwivEL elbow
    扩口式组合弯通管接头    		 China National Standards
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    GB/T 5631-2008 Flared couplings - Straight thread ELbow
    扩口式可调向端弯通管接头    		 China National Standards
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    GB/T 5630-2008 Flared couplings - Union ELbow
    扩口式弯通管接头    		 China National Standards
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    GB/T 5629-2008 Flared couplings - Male ELbow
    扩口式锥螺纹弯通管接头    		 China National Standards
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    GB/T 3758-2008 24° cone connectors - WELd-on nipple
    卡套式管接头用锥密封焊接接管    		 China National Standards
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    GB/T 3757-2008 24° cone connectors - WELd-in bulkhead straight connector
    卡套式过板焊接管接头    		 China National Standards
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    GB/T 3756-2008 24° cone connectors - SwivEL stud straight adapter with O-ring with stud end
    卡套式锥密封组合直通管接头    		 China National Standards
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    GB/T 3754-2008 24° cone connectors - SwivEL elbow with O-ring
    卡套式锥密封组合弯通管接头    		 China National Standards
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    GB/T 3752-2008 24° cone connectors - Adjustable ELbow
    卡套式组合弯通管接头    		 China National Standards
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    GB/T 3750-2008 24° cone connectors - Angle swivEL screw connector
    卡套式铰接管接头    		 China National Standards
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    GB/T 3749-2008 24° cone connectors - Bulkhead union ELbow
    卡套式过板弯通管接头    		 China National Standards
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    GB/T 3747-2008 24° cone connectors - WELd male
    卡套式焊接管接头    		 China National Standards
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    GB/T 3740-2008 24° cone connectors - Union ELbow
    卡套式弯通管接头    		 China National Standards
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    GB/T 3739-2008 24° cone connectors - Male ELbow
    卡套式锥螺纹弯通管接头    		 China National Standards
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    GB/T 3738-2008 24° cone connectors - Straight thread ELbow
    卡套式可调向端弯通管接头    		 China National Standards
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    GB/T 14383-2008 Forged fittings, socket-wELding and threaded
    锻制承插焊和螺纹管件    		 China National Standards
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