China Fe Cr Al GB Standards List

China "Fe Cr Al" GB Standards List:

Standard Code	Standard Title	Standard Class	Order
GB/T 24496-2009	Grooved vertical joints with connecting bars and concrete infill between large reinforced concrete panels - Laboratory mechanical tests - Effect of tangential loading 钢筋混凝土大板间有连接筋并用混凝土浇灌的键槽式竖向接缝实验室力学试验平面内切向荷载的影响	China National Standards Fe Cr Al	English PDF
GB/T 24495-2009	Horizontal joints between load-bearing walls and concrete floors - Laboratory mechanical tests - Effect of vertical loading and of moments transmitted by the floors 承重墙与混凝土楼板间的水平接缝实验室力学试验由楼板传来的垂直荷载和弯矩的影响	China National Standards Fe Cr Al	English PDF
GB/T 15146.6-2009	Nuclear criticality safety for fissile materials outside reactor - Part 6: Borosilicate glass raschig rings and its application criteria 反应堆外易裂变材料的核临界安全第6部分：硼硅酸盐玻璃拉希环及其应用准则	China National Standards Fe Cr Al	English PDF
GB/T 24318-2009	Determination of total nitrogen content in animal feeding stuffs by combustion according to the dumas principle and calculation of the crude protein content 杜马斯燃烧法测定饲料原料中总氮含量及粗蛋白质的计算	China National Standards Fe Cr Al	English PDF
GB/T 24269-2009	Specification for CuCrFe electric contact material 铜铬铁电触头技术条件	China National Standards Fe Cr Al	English PDF
GB/Z 23785-2009	Guidelines for incorporating microbiological risk assessment in food safety risk management 微生物风险评估在食品安全风险管理中的应用指南	China National Standards Fe Cr Al	English PDF
GB/T 23743-2009	Microbiological examination of the enumeration of coagulase-positive staphylococci in feeds - Technique using Baird-Parker agar medium 饲料中凝固酶阳性葡萄球菌的微生物学检验 Baird-parker琼脂培养基计数法	China National Standards Fe Cr Al	English PDF
GB/T 13620-2009	Determination of coordination area and predication methods of interference between satellite communication earth station and terrestrial microwave station 卫星通信地球站与地面微波站之间协调区的确定和干扰计算方法	China National Standards Fe Cr Al	English PDF
GB/T 23723.1-2009	Cranes - Safe use - Part 1: General 起重机　安全使用　第1部分：总则	China National Standards Fe Cr Al	English PDF
GB 23525-2009	Safety technical criterion for personal board-type sling equipment for suspending work 座板式单人吊具悬吊作业安全技术规范	China National Standards Fe Cr Al	English PDF
GB/T 23416.9-2009	The safety technical specification of pest control for vegetables - Part 9: Bulb crups 蔬菜病虫害安全防治技术规范第9部分：葱蒜类	China National Standards Fe Cr Al	English PDF
GB/T 23416.4-2009	The safety technical specification of pest control for vegetables - Part 4: Cole crops vegetables 蔬菜病虫害安全防治技术规范第4部分：甘蓝类	China National Standards Fe Cr Al	English PDF
GB/T 23392.4-2009	Technical specification for the forecast of diseases and insects on cruciferous plants - Part 4: Spodoptera exigua(Hvbner) 十字花科蔬菜病虫害测报技术规范第4部分：甜菜夜蛾	China National Standards Fe Cr Al	English PDF
GB/T 23392.3-2009	Technical specification for the forecast of diseases and insects on cruciferous plants - Part 3: Plutella xylostella linnaeus 十字花科蔬菜病虫害测报技术规范第3部分：小菜蛾	China National Standards Fe Cr Al	English PDF
GB/T 23392.2-2009	Technical specification for the forecast of diseases and insects on cruciferous plants - Part 2: Erwinia carotovora subsp. carotovora (Jones) Bergey et al. 十字花科蔬菜病虫害测报技术规范第2部分：软腐病	China National Standards Fe Cr Al	English PDF
GB/T 23392.1-2009	Technical specification for the forecast of diseases and insects on cruciferous plants - Part 1: Pernospora parasitica (Pers.) Fr. 十字花科蔬菜病虫害测报技术规范第1部分：霜霉病	China National Standards Fe Cr Al	English PDF
GB/T 23181-2008	The general principles for microbial feed additives 微生物饲料添加剂通用要求	China National Standards Fe Cr Al	English PDF
GB 4706.51-2008	Household and similar electrical appliances - Safety - Particular requirements for commercial electric appliances for keeping food and crockery warm 家用和类似用途电器的安全商用电热食品和陶瓷餐具保温器的特殊要求	China National Standards Fe Cr Al	English PDF
GB 17498.5-2008	Stationary training equipment - Part 5: Pedal crank training equipment - Additional specific safety requirements and test methods 固定式健身器材第5部分：曲柄踏板类训练器材附加的特殊安全要求和试验方法	China National Standards Fe Cr Al	English PDF
GB 4706.57-2008	Household and similar electrical appliances - Safety - Particular requirements for floor treatment machines and wet scrubbing machines 家用和类似用途电器的安全地板处理机和湿式擦洗机的特殊要求	China National Standards Fe Cr Al	English PDF
GB 4706.21-2008	Household and similar electrical appliances - Safety - Particular requirements for microwave ovens, including combination microwave ovens 家用和类似用途电器的安全微波炉，包括组合型微波炉的特殊要求	China National Standards Fe Cr Al	English PDF
GB 16912-2008	Safety technical regulation for oxygen and relative gases produced with cryogenic method 深度冷冻法生产氧气及相关气体安全技术规程	China National Standards Fe Cr Al	English PDF
GB 15146.8-2008	Nuclear criticality safety for fissile materials outside reactors - Part 8: Criticality safety criteria for the handling , storage, and transportation of LWR fuel outside reactors 反应堆外易裂变材料的核临界安全第8部分：堆外操作、贮存、运输轻水堆燃料的核临界安全准则	China National Standards Fe Cr Al	English PDF
GB 15146.3-2008	Nuclear criticality safety for fissile materials outside reactors - Part 3: Requirements for nuclear criticality safety in the storage of fissile materials 反应堆外易裂变材料的核临界安全第3部分：易裂变材料贮存的核临界安全要求	China National Standards Fe Cr Al	English PDF
GB 15146.2-2008	Nuclear criticality safety for fissile materials outside reactors - Part 2: Basic technical practices and subcritical limits for handling, processing and operations with fissile materials 反应堆外易裂变材料的核临界安全第2部分：易裂变材料操作、加工、处理的基本技术规则与次临界限值	China National Standards Fe Cr Al	English PDF
GB 15146.1-2008	Nuclear criticality safety for fissile materials outside reactors - Part 1: Administrative practices for nuclear criticality safety 反应堆外易裂变材料的核临界安全第1部分：核临界安全行政管理规定	China National Standards Fe Cr Al	English PDF
GB 4793.2-2008	Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2: Particular requirements for hand-held and hand-manipulated cruuent sensors for electrical test and measurement 测量、控制和实验室用电气设备的安全要求第2部分：电工测量和试验用手持和手操电流传感器的特殊要求	China National Standards Fe Cr Al	English PDF
GB/T 6188-2008	Hexalobular internal driving feature for bolts and screws 螺栓和螺钉用内六角花形	China National Standards Fe Cr Al	English PDF
GB/T 13629-2008	Applicable criteria for digital computers in safety systems of nuclear power plants 核电厂安全系统中数字计算机的适用准则	China National Standards Fe Cr Al	English PDF
GB/T 13624-2008	Functional design criteria for safety parameter display system for nuclear power plants 核电厂安全参数显示系统的功能设计准则	China National Standards Fe Cr Al	English PDF
GB/T 1954-2008	Methods of measurement for ferrite content in austenitic Cr-Ni stainless steel weld metals 铬镍奥氏体不锈钢焊缝铁素体含量测量方法	China National Standards Fe Cr Al	English PDF
GB/T 22057.2-2008	Microscopes - Imaging distances related to mechanical reference planes - Part 2: Infinity-corrected optical systems 显微镜相对机械参考平面的成像距离第2部分：无限远校正光学系统	China National Standards Fe Cr Al	English PDF
GB/T 22057.1-2008	Microscopes - Imaging distances related to mechanical reference planes - Part 1: Tube length 160mm 显微镜相对机械参考平面的成像距离第1部分：筒长160mm	China National Standards Fe Cr Al	English PDF
GB/T 17587.5-2008	Ball screws - Part 5: Static and dynamic load ratings and operational life 滚珠丝杠副第5部分：轴向额定静载荷和动载荷及使用寿命	China National Standards Fe Cr Al	English PDF
GB/T 4930-2008	Microbeam analysis - Electron probe microanalysis - Guidelines for the specification of certified reference materials (CRMs) 微束分析电子探针分析标准样品技术条件导则	China National Standards Fe Cr Al	English PDF
GB/T 21638-2008	Guide for electron beam microananlysis of defect in steel materials 钢铁材料缺陷电子束显微分析方法通则	China National Standards Fe Cr Al	English PDF
GB/T 21542-2008	Determination of enramycin in feeds - Microbiological method 饲料中恩拉霉素的测定微生物学法	China National Standards Fe Cr Al	English PDF
GB/T 12832-2008	Rubber-Determination of crystallization effects by hardness measurements 橡胶结晶效应的测定硬度测量法	China National Standards Fe Cr Al	English PDF
GB 5959.6-2008	Safety in electroheat installations - Part 6: Specifications for safety in industrial microwave heating equipment 电热装置的安全第6部分: 工业微波加热设备的安全规范	China National Standards Fe Cr Al	English PDF
GB/T 21107-2007	Identification of horse and donkey derived materials in feedstuff PCR Method 动物源性饲料中马、驴源性成分定性检测方法 PCR方法	China National Standards Fe Cr Al	English PDF
GB/T 21106-2007	Identification of cervus derived material in animal - originated feedstuff PCR method 动物源性饲料中鹿源性成分定性检测方法 PCR方法	China National Standards Fe Cr Al	English PDF
GB/T 21105-2007	Identification of canis derived material in feedstuff PCR method 动物源性饲料中狗源性成分定性检测方法 PCR方法	China National Standards Fe Cr Al	English PDF
GB/T 21104-2007	Identification of Ruminantia derived material (bovidae、caprinae、cervus) in animal - originated feedstuff PCR method 动物源性饲料中反刍动物源性成分(牛、羊、鹿)定性检测方法 PCR方法	China National Standards Fe Cr Al	English PDF
GB/T 21103-2007	Identification of mammal derived materials in feedstuffs real time PCR method 动物源性饲料中哺乳动物源性成分定性检测方法实时荧光PCR方法	China National Standards Fe Cr Al	English PDF
GB/T 21102-2007	Identification of rabbit derived materials in feedstuffs real time PCR method 动物源性饲料中兔源性成分定性检测方法实时荧光PCR方法	China National Standards Fe Cr Al	English PDF
GB/T 21101-2007	Identification of porcine derived materials in feedstuff PCR method 动物源性饲料中猪源性成分定性检测方法 PCR方法	China National Standards Fe Cr Al	English PDF
GB/T 21100-2007	Identification of camelidae derived material in animal - originated feedstuff PCR method 动物源性饲料中骆驼源性成分定性检测方法 PCR方法	China National Standards Fe Cr Al	English PDF
GB/T 11094-2007	Horizontal bridgman grown gallium arsenide single　crystal and cutting wafer 水平法砷化镓单晶及切割片	China National Standards Fe Cr Al	English PDF
GB 9706.6-2007	Medical electrical equipment - Part 2：Particular requirements for the safety of microwave therapy equipment 医用电气设备第二部分：微波治疗设备安全专用要求	China National Standards Fe Cr Al	English PDF
GB/T 6438-2007	Animal feeding stuffs - Determination of crude ash 饲料中粗灰分的测定	China National Standards Fe Cr Al	English PDF
GB/T 20803-2006	Universal technical criterions for proportion system in feed mill 饲料配料系统通用技术规范	China National Standards Fe Cr Al	English PDF
GB/T 2624.4-2006	Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 4: Venturi tubes 用安装在圆形截面管道中的差压装置测量满管流体流量第4部分：文丘里管	China National Standards Fe Cr Al	English PDF
GB/T 2624.3-2006	Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 3: Nozzles and Venturi nozzles 用安装在圆形截面管道中的差压装置测量满管流体流量第3部分：喷嘴和文丘里喷嘴	China National Standards Fe Cr Al	English PDF
GB/T 2624.2-2006	Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 2: Orifice plates 用安装在圆形截面管道中的差压装置测量满管流体流量第2部分：孔板	China National Standards Fe Cr Al	English PDF
GB/T 2624.1-2006	Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 1: General principles and requirements 用安装在圆形截面管道中的差压装置测量满管流体流量第1部分：一般原理和要求	China National Standards Fe Cr Al	English PDF
GB/T 19659.4-2006	Industrial automation systems and integration - Open systems application integration framework - Part 4: Reference description for Ethernet-based control systems 工业自动化系统与集成开放系统应用集成框架第4部分：基于以太网控制系统的参考描述	China National Standards Fe Cr Al	English PDF
GB/T 19659.3-2006	Industrial automation systems and integration - Open systems application integration framework - Part 3: Reference description for IEC 61158-based control systems 工业自动化系统与集成开放系统应用集成框架第3部分：基于IEC 61158控制系统的参考描述	China National Standards Fe Cr Al	English PDF
GB/T 19659.2-2006	Industrial automation systems and integration - Open systems application integration framework - Part 2: Reference description for ISO 11898-based control systems 工业自动化系统与集成开放系统应用集成框架第2部分：基于ISO 11898的控制系统的参考描述	China National Standards Fe Cr Al	English PDF
GB/T 20636-2006	Connecting device - Electrical copper conductors - Safety requirements for screw-type and screwless-type clamping units - Particular requirements for conductors above 35mm2 up to 300mm2 连接器件电气铜导线螺纹型和非螺纹型夹紧件的安全要求适用于35mm2以上至300mm2导线的特殊要求	China National Standards Fe Cr Al	English PDF
GB 9706.28-2006	Medical electrical equipment―Part 2: Particular requirements for the safety of lung ventilators―Critical care ventilators 医用电气设备第2部分: 呼吸机安全专用要求治疗呼吸机	China National Standards Fe Cr Al	English PDF
GB/T 20191-2006	Microbiological examination of Lactobacillus acidlophilus in feeds 饲料中嗜酸乳杆菌的微生物学检验	China National Standards Fe Cr Al	English PDF
GB/T 20190-2006	Detection of bovine, sheep and goat-derived material in feeds - Qualitative polymerase chain reaction (PCR) method 饲料中牛羊源性成分的定性检测定性聚合酶链式反应（PCR）法	China National Standards Fe Cr Al	English PDF
GB 20294-2006	Safety requirements of flameproof crane & metallurgical and canned motors 隔爆型起重冶金和屏蔽电机安全要求	China National Standards Fe Cr Al	English PDF
GB 20237-2006	Safety requirements of crane & metallurgical motors and canned motors 起重冶金和屏蔽电机安全要求	China National Standards Fe Cr Al	English PDF
GB 10395.6-2006	Tractors and machinery for agriculture and forestry - Technical means for ensuring safety - Part 6: Equipment for crop protection 农林拖拉机和机械安全技术要求第6部分：植物保护机械	China National Standards Fe Cr Al	English PDF
GB 16487.7-2005	Environmental protection control standard for imported solid wastes as raw materials -- Nonferrous metal scraps 进口可用作原料的固体废物环境保护控制标准废有色金属	China National Standards Fe Cr Al	English PDF
GB/T 19816.5-2005	Preparation of steel substrates before application of paints and related products-Test methods for metallic blast-cleaning abrasives-Part 5:Determination of percentage defective particles and of microstructure 涂覆涂料前钢材表面处理喷射清理用金属磨料的试验方法第5部分:缺陷颗粒百分比和微结构的测定	China National Standards Fe Cr Al	English PDF
GB/T 19703-2005	In vitro diagnostic medical devices-Measurement of quantities in samples of biological origin-Description of reference materials 体外诊断医疗器械生物源性样品中量的测量参考物质的说明	China National Standards Fe Cr Al	English PDF
GB/T 19659.1-2005	Industrial automation systems and integration-Open systems application integration framework-Part 1:Generic reference description 工业自动化系统与集成开放系统应用集成框架第1部分:通用的参考描述	China National Standards Fe Cr Al	English PDF
GB/T 19628.2-2005	Industrial wire screens woven wire cloth-Guide to the choice of aperture size and wire diameter combinations-Part 2:Preferred combination for woven wire cloth 工业用金属丝网和金属丝编织网网孔尺寸与金属丝直径组合选择指南金属丝编织网的优先组合选择	China National Standards Fe Cr Al	English PDF
GB/T 15146.11-2004	Nuclear criticality safety for fissile materials outside reactor--Nuclear criticalitysafety based on limiting and controlling moderators 反应堆外易裂变材料的核临界安全基于限制和控制慢化剂的核临界安全	China National Standards Fe Cr Al	English PDF
GB/T 19466.3-2004	Plastics--Differential scanning calorimetry(DSC)--Part 3:Determination of temperatureand enthalpy of melting and crystallization 塑料差示扫描量热法(DSC) 第3部分:熔融和结晶温度及热焓的测定	China National Standards Fe Cr Al	English PDF
GB/T 8124-2004	Tolerances and general features of gauges for metric trapezoidal screw threads 梯形螺纹量规技术条件	China National Standards Fe Cr Al	English PDF
GB/T 12690.5-2003	Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of Al、Cr、Mn、Fe、Co、Ni、Cu、Zn、Pb content by inductively coupled plasma atomic emission spectrographic method--Determination of Co、M 稀土金属及其氧化物中非稀土杂质化学分析方法铝、铬、锰、铁、钴、镍、铜、锌、铅的测定电感耦合等离子体发射光谱法(方法1) 钴、锰、铅、镍、铜、锌、铝、铬的测定电感耦合等离子	China National Standards Fe Cr Al	English PDF
GB/T 19314.1-2003	Small craft--Hull construction and scantlings--Part 1: Materials: Thermosetting resins，glass-fibre reinforcement，reference laminate 小艇艇体结构和构件尺寸第1部分:材料:热固性树脂、玻璃纤维增强塑料、基准层合板	China National Standards Fe Cr Al	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 Fe Cr Al	English PDF
GB/T 12964-2003	Monocrystalline silicon polished wafers 硅单晶抛光片	China National Standards Fe Cr Al	English PDF
GB/T 9146-2003	General purpose metric screw threads--Limits of sizes for the screw threads of coarse quality and preferable plan 普通螺纹粗糙精度、优选系列的极限尺寸	China National Standards Fe Cr Al	English PDF
GB/T 9145-2003	General purpose metric screw threads--Limits of sizes for the screw threads of medium quality and preferable plan 普通螺纹中等精度、优选系列的极限尺寸	China National Standards Fe Cr Al	English PDF
GB/T 9144-2003	General purpose metric screw threads--Preferable plan 普通螺纹优选系列	China National Standards Fe Cr Al	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 Fe Cr Al	English PDF
GB/T 1979-2001	Standard diagrams for macrostructure and defect of structural steels 结构钢低倍组织缺陷评级图	China National Standards Fe Cr Al	English PDF
GB 15146.10-2001	Nuclear criticality safety for fissile materials outside reactors--Safety requirements for the use of fixed neutron absorbers 反应堆外易裂变材料的核临界安全固定中子吸收体的应用安全要求	China National Standards Fe Cr Al	English PDF
GB 18211-2000	General requirements for safety of electrical micromachines 微电机安全通用要求	China National Standards Fe Cr Al	English PDF
GB/T 18032-2000	The inspecting method of AB microscopic defect in gallium arsenide single crystal 砷化镓单晶AB微缺陷检验方法	China National Standards Fe Cr Al	English PDF
GB/T 17980.13-2000	Pesticide--Guidelines for the field efficacy trials(I)--Insecticides against larvaeof lepidoptera on crucifer vegetable 农药田间药效试验准则(一) 杀虫剂防治十字花科蔬菜的鳞翅目幼虫	China National Standards Fe Cr Al	English PDF
GB/T 17980.18-2000	Pesticide--Guidelines for the field efficacy trials(I)--Insecticides against striped flea beetle on crucifer vegetable 农药田间药效试验准则(一) 杀虫剂防治十子花科蔬菜黄条跳甲	China National Standards Fe Cr Al	English PDF
GB/T 9404-1999	Technical specifications of feeder systems for microwave-relay communication 微波接力通信馈线系统技术条件	China National Standards Fe Cr Al	English PDF
GB/T 819.2-1997	Cross recessed countersunk flat head screws(common head style)--Grade A--Part 2:Steel ofproperty class 8.8，stainless steel and non-ferrous metals 十字槽沉头螺钉第2部分:钢8.8、不锈钢A2-70和有色金属CU2或CU3	China National Standards Fe Cr Al	English PDF
GB/T 3-1997	Run-outs，undercuts and chamfers forgeneral purpose metric screw threads 普通螺纹收尾、肩距、退刀槽和倒角	China National Standards Fe Cr Al	English PDF
GB 15146.9-1994	Nuclear criticality safety for fissile materials outside reactor--Performanceand testing requirements for nuclear criticality detection and alarm systems 反应堆外易裂变材料的核临界安全核临界事故探测与报警系统的性能及检验要求	China National Standards Fe Cr Al	English PDF
GB/T 15121.1-1994	Information processing systems--Computer graphics--Metafile for storage and transfer of picture description information--Part 1:Functional specification 信息处理系统计算机图形存储和传送图片描述信息的元文卷第一部分:功能描述	China National Standards Fe Cr Al	English PDF
GB 15146.7-1994	Nuclearcriticality safety for fissile materials outside reactor--Safety controls in conducting subcritical neutron multiplication measurements in situ 反应堆外易裂变材料的核临界安全次临界中子增殖就地测量安全规定	China National Standards Fe Cr Al	English PDF
GB 15146.5-1994	Nuclear criticality safety for fissile materials outside reactor--Nuclearcriticality control criteria and subcritical limits for plutonium-natural uranium mixtures 反应堆外易裂变材料的核临界安全钚-天然铀混合物的核临界控制准则和次临界限值	China National Standards Fe Cr Al	English PDF
GB 15146.4-1994	Nuclear criticality safety for fissile materials outside reactor--Nuclear criticality safety criteria for steel-pipe intersections containing aqueous solutions of fissile material 反应堆外易裂变材料的核临界安全含易裂变物质水溶液的钢质管道交接的核临界安全准则	China National Standards Fe Cr Al	English PDF
GB/T 15000.1-1994	Directives forthe work of reference materials(1)--General rules for description of reference materials in technical standards 标准样品工作导则(1) 在技术标准中陈述标准样品的一般规定	China National Standards Fe Cr Al	English PDF
GB/T 3098.10-1993	Mechanical properties of fasteners--Bolts，screws，studs and nuts made of non-ferrous metals 紧固件机械性能有色金属制造的螺栓、螺钉、螺柱和螺母	China National Standards Fe Cr Al	English PDF
GB/T 14142-1993	Test method for crystallographic perfection of epit-axial layers in silicon by etching techniques 硅外延层晶体完整性检查方法腐蚀法	China National Standards Fe Cr Al	English PDF
GB 11515-1989	Diagnostic criteria and principles of management of metal fume fever 金属烟热诊断标准及处理原则	China National Standards Fe Cr Al	English PDF
GB/T 8756-1988	Collection of metallographs on defects of crystallinegermanium 锗晶体缺陷图谱	China National Standards Fe Cr Al	English PDF
GB/T 7918.3-1987	Standard methods of microbiological examination for cosmetics--Fecal coliforms 化妆品微生物标准检验方法粪大肠菌群	China National Standards Fe Cr Al	English PDF
GB/T 3974-1983	Telephone transmission interference allowances for long-distance high-capacity analogue microwave communication systems 大容量长距离模拟微波通信干线电话传输干扰容限	China National Standards Fe Cr Al	English PDF

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