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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 30803-2014 |
Thermal insulation products for building applications—Determination of the tensile bond strength of the adhesive and of the base coat to the thermal insulation material 建筑用绝热制品 绝热材料与粘结剂和基底涂层的拉伸粘结强度的测定 |
China National Standards applications |
 English PDF |
| GB/T 30802-2014 |
Thermal insulating products for building applications—Determination of behaviour under point load 建筑用绝热制品 点载荷性能的测定 |
China National Standards applications |
English PDF |
| GB/T 17369-2014 |
Thermal insulation for building applications―Guidelines for selecting properties 建筑用绝热材料 性能选定指南 |
China National Standards applications |
English PDF |
| GB/T 13480-2014 |
Thermal insulating products for building applications―Determination of compression behaviour 建筑用绝热制品 压缩性能的测定 |
China National Standards applications |
English PDF |
| GB/T 30724-2014 |
Specifications of solar water heating systems for industrial applications 工业应用的太阳能热水系统技术规范 |
China National Standards applications |
English PDF |
| GB/T 30540-2014 |
Document management applications―Achiving of electronic data―Computer output microform (COM)/Computer output laser disc (COLD) 文件管理应用 电子数据的存档 计算机输出缩微品（COM）/计算机输出激光光盘（COLD） |
China National Standards applications |
English PDF |
| GB/T 30538-2014 |
Document management applications―Quality control for scanning office documents in colour 文件管理应用 办公文件彩色扫描的质量控制 |
China National Standards applications |
English PDF |
| GB/T 30536-2014 |
Document imaging applications―Recommendations for the creation of original documents 文献成像应用 对原始文件制作的建议 |
China National Standards applications |
English PDF |
| GB/T 30491.1-2014 |
Natural gas—Calculation of thermodynamic properties—Part 1: Gas phase properties for transmission and distribution applications 天然气 热力学性质计算 第1部分：输配气中的气相性质 |
China National Standards applications |
English PDF |
| GB/T 30426-2013 |
Secondary cells and batteries containing alkaline or other non-acid electrolytes—Secondary lithium cells and batteries for portable applications 含碱性或其它非酸性电解质的蓄电池和蓄电池组 便携式锂蓄电池和蓄电池组 |
China National Standards applications |
English PDF |
| GB 1094.16-2013 |
Power transformers—Part 16: Transformers for wind turbine applications 电力变压器 第16部分：风力发电用变压器 |
China National Standards applications |
English PDF |
| GB/T 13295-2013 |
Ductile iron pipes,fittings and accessories for water or gas applications 水及燃气用球墨铸铁管、管件和附件 |
China National Standards applications |
English PDF |
| GB/T 30118-2013 |
Single crystal wafers for surface acoustic wave (SAW) device applications―Specifications and measuring methods 声表面波（SAW）器件用单晶晶片规范与测量方法 |
China National Standards applications |
English PDF |
| GB/T 30145-2013 |
Specification for YZP series variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical applications（Frame size 450 to 500) YZP系列起重及冶金用变频调速三相异步电动机技术条件（机座号450～500） |
China National Standards applications |
English PDF |
| GB/T 30143-2013 |
Specification for YZR series of wound-rotor three-phase induction motors for crane and metallurgical applications YZR系列起重及冶金用绕线转子三相异步电动机技术条件（机座号450～500） |
China National Standards applications |
English PDF |
| GB/T 21972.3-2013 |
Specification for variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical applications―Part 3:YZP series variable-frequency adjustable-speed three-phase induction motors (cooled with centrifugal fan)for crane and met 起重及冶金用变频调速三相异步电动机技术条件 第3部分：YZP系列起重及冶金用变频调速三相异步电动机（离心风机冷却） |
China National Standards applications |
English PDF |
| GB/T 29857-2013 |
Ships and marine technology - Computer applications - Shipboard loading instruments 船舶和海上技术 计算机应用 船用装载仪 |
China National Standards applications |
English PDF |
| GB/T 29852-2013 |
Test method for measuring Phosphorus, Arsenic and Antimony in silicon materials used for photovoltaic applications by secondary ion mass spectrometry 光伏电池用硅材料中P、As、Sb施主杂质含量的二次离子质谱测量方法 |
China National Standards applications |
English PDF |
| GB/T 29851-2013 |
Test method for measuring Boron and Aulminium in silicon materials used for photovoltaic applications by secondary ion mass spectrometry 光伏电池用硅材料中B、Al受主杂质含量的二次离子质谱测量方法 |
China National Standards applications |
English PDF |
| GB/T 29850-2013 |
Test method for measuring compensation degree of silicon materials used for photovoltaic applications 光伏电池用硅材料补偿度测量方法 |
China National Standards applications |
English PDF |
| GB/T 29849-2013 |
Test method for measuring surface metallic contamination of silicon materials used for photovoltaic applications by inductively coupled plasma mass spectrometry 光伏电池用硅材料表面金属杂质含量的电感耦合等离子体质谱测量方法 |
China National Standards applications |
English PDF |
| GB/T 5013.8-2013 |
Rubber insulated cables - Rated voltages up to and including 450/750V - Part 8:Cords for applications requiring high flexibility 额定电压450/750V及以下橡皮绝缘电缆 第8部分：特软电线 |
China National Standards applications |
English PDF |
| GB 29303-2012 |
Switched protective earth portable residual current devices for class Ⅰ and battery powered vehicle applications 用于Ⅰ类和电池供电车辆的可开闭保护接地移动式剩余电流装置(SPE-PRCD) |
China National Standards applications |
English PDF |
| GB/T 29165.1-2012 |
Petroleum and natural gas industries - Glass-reinforced plastics (GRP) piping - Part 1: Vocabulary, symbols, applications and materials 石油天然气工业 玻璃纤维增强塑料管 第1部分：词汇、符号、应用及材料 |
China National Standards applications |
English PDF |
| GB/T 29326-2012 |
Selection of energy-efficient motors including variable speed applications - Application guide 包括变速应用的能效电动机选择和应用导则 |
China National Standards applications |
English PDF |
| GB/T 29181-2012 |
Computer applications in terminology - Terminological markup framework 术语工作 计算机应用 术语信息置标框架 |
China National Standards applications |
English PDF |
| GB/T 22270.2-2012 |
Industrial automation systems and integration - Service interface for testing applications - Part 2: Resource management service interface 工业自动化系统与集成 测试应用的服务接口 第2部分：资源管理服务接口 |
China National Standards applications |
English PDF |
| GB/T 21972.2-2012 |
Specification for variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical applications - Part 2: YZP series variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical applications(cool 起重及冶金用变频调速三相异步电动机技术条件 第2部分：YZP系列起重及冶金用变频调速三相异步电动机（轴流风机冷却） |
China National Standards applications |
English PDF |
| GB/T 28852-2012 |
Specifications for climatic chambers for biological applications 生物人工气候试验箱技术条件 |
China National Standards applications |
English PDF |
| GB/T 28809-2012 |
Railway applications - Communication, signaling and processing systems - Safety related electronic systems for signaling 轨道交通 通信、信号和处理系统 信号用安全相关电子系统 |
China National Standards applications |
English PDF |
| GB/T 28808-2012 |
Railway applications - Communication, signaling and processing systems - Software for railway control and protection systems 轨道交通 通信、信号和处理系统 控制和防护系统软件 |
China National Standards applications |
English PDF |
| GB/T 28807-2012 |
Railway applications - Compatibility between rolling stock and train detection systems 轨道交通 机车车辆和列车检测系统的兼容性 |
China National Standards applications |
English PDF |
| GB/T 28806-2012 |
Railway applications - Rolling stock - Testing of rolling stock on completion of construction and before entry into service 轨道交通 机车车辆 机车车辆制成后投入使用前的试验 |
China National Standards applications |
English PDF |
| GB 19212.2-2012 |
Safety of power transformers, power supplies, reactors and similar products - Part 2: Particular requirements and tests for separating transformers and power supplies incorporating separating transformers for general applications 电力变压器、电源、电抗器和类似产品的安全 第2部分：一般用途分离变压器和内装分离变压器的电源的特殊要求和试验 |
China National Standards applications |
English PDF |
| GB/T 28574-2012 |
Petroleum, petrochemical and natural gas industries steam turbines － Special-purpose applications 石油、石化和天然气工业 特种用途汽轮机 |
China National Standards applications |
English PDF |
| GB/T 28573-2012 |
Petroleum, petrochemical and natural gas industries steam turbines － General-purpose applications 石油、石化和天然气工业 一般用途汽轮机 |
China National Standards applications |
English PDF |
| GB/T 28457-2012 |
Testing specification for applications of SSL protocol SSL协议应用测试规范 |
China National Standards applications |
English PDF |
| GB/T 28456-2012 |
Testing specification for applications of IPsec protocol IPsec协议应用测试规范 |
China National Standards applications |
English PDF |
| GB/T 24338.2-2011 |
Railway applications - Electromagnetic compatibility - Part 2: Emission of the whole railway system to the outside world 轨道交通 电磁兼容 第2部分：整个轨道系统对外界的发射 |
China National Standards applications |
English PDF |
| GB/T 27758.1-2011 |
Industrial automation systems and integration - Diagnostics, capability assessment and maintenance applications integration - Part 1: Overview and general requirements 工业自动化系统与集成 诊断、能力评估以及维护应用集成 第1部分：综述与通用要求 |
China National Standards applications |
English PDF |
| GB 2536-2011 |
Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear 电工流体 变压器和开关用的未使用过的矿物绝缘油 |
China National Standards applications |
English PDF |
| GB/T 28027-2011 |
Railway applications - Technical criteria for the coordination between power supply and rolling stock to achieve interoperability 轨道交通 供电系统和机车车辆运行匹配 |
China National Standards applications |
English PDF |
| GB/T 28026.2-2011 |
Railway applications - Fixed installations - Part 2: Protective provisions against the effects of stray currents caused by d.c.traction supply system 轨道交通 地面装置 第2部分：直流牵引系统杂散电流防护措施 |
China National Standards applications |
English PDF |
| GB/T 28026.1-2011 |
Railway applications - Fixed installations - Part 1: Protective provisions relating to electrical safety and earthing 轨道交通 地面装置 第1部分：电气安全和接地相关的安全性措施 |
China National Standards applications |
English PDF |
| GB/T 26852-2011 |
Requirements concerning the interoperability between electromechanical and electrical applications in CAx-systems CAx系统中机电和电气应用之间的互操作要求 |
China National Standards applications |
English PDF |
| GB/T 26081-2010 |
Ductile iron pipes,fittings and accessories for sewage applications 污水用球墨铸铁管、管件和附件 |
China National Standards applications |
English PDF |
| GB/T 25890.9-2010 |
Railway applications - Fixed installations - DC switchgear Part 7-3: Measurement,control and protection devices for specific use in d.c. traction systems-Isolating voltage transducers and other voltage measuring devices 轨道交通 地面装置 直流开关设备 第7-3部分：直流牵引供电系统专用测量、控制和保护装置 隔离电压变送器和其他电压测量设备 |
China National Standards applications |
English PDF |
| GB/T 25890.8-2010 |
Railway applications - Fixed installations - DC switchgear Part 7-2: Measurement,control and protection devices for specific use in d.c. traction systems-Isolating current transducers and other current measuring devices 轨道交通 地面装置 直流开关设备 第7-2部分：直流牵引供电系统专用测量、控制和保护装置 隔离电流变送器和其他电流测量设备 |
China National Standards applications |
English PDF |
| GB/T 25890.7-2010 |
Railway applications - Fixed installations - DC switchgear - Part 7-1: Measurement,control and protection devices for specific use in d.c. traction systems-Application guide 轨道交通 地面装置 直流开关设备 第7-1部分：直流牵引供电系统专用测量、控制和保护装置 应用指南 |
China National Standards applications |
English PDF |
| GB/T 25890.6-2010 |
Railway applications - Fixed installations - DC switchgear - Part 6: DC switchgear assemblies 轨道交通 地面装置 直流开关设备 第6部分：直流成套开关设备 |
China National Standards applications |
English PDF |
| GB/T 25890.5-2010 |
Railway applications - Fixed installations - DC switchgear - Part 5: Surge arresters and low-voltage limiters for specific use in d.c. system 轨道交通 地面装置 直流开关设备 第5部分：直流避雷器和低压限制器 |
China National Standards applications |
English PDF |
| GB/T 25890.4-2010 |
Railway applications - Fixed installations - DC switchgear - Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches 轨道交通 地面装置 直流开关设备 第4部分：户外直流隔离开关、负荷开关和接地开关 |
China National Standards applications |
English PDF |
| GB/T 25890.3-2010 |
Railway applications - Fixed installations - DC switchgear - Part 3: Indoor d.c. disconnectors, switch disconnectors and earthing switches 轨道交通 地面装置 直流开关设备 第3部分：户内直流隔离开关、负荷开关和接地开关 |
China National Standards applications |
English PDF |
| GB/T 25890.2-2010 |
Railway applications - Fixed installations - DC switchgear - Part 2: DC circuit breakers 轨道交通 地面装置 直流开关设备 第2部分：直流断路器 |
China National Standards applications |
English PDF |
| GB/T 25890.1-2010 |
Railway applications - Fixed installations - DC switchgear - Part 1：General 轨道交通 地面装置 直流开关设备 第1部分：总则 |
China National Standards applications |
English PDF |
| GB/T 1402-2010 |
Railway applications - Supply voltages of traction systems 轨道交通 牵引供电系统电压 |
China National Standards applications |
English PDF |
| GB/T 8190.4-2010 |
Reciprocating internal combustion engines - Exhaust emission measurement - Part 4: Steady-state test cycles for different engine applications 往复式内燃机 排放测量 第4部分：不同用途发动机的稳态试验循环 |
China National Standards applications |
English PDF |
| GB/T 25343.5-2010 |
Railway applications - Welding of railway vehicles and components - Part 5: Inspection,testing and documentation 铁路应用 轨道车辆及其零部件的焊接 第5部分：检验、试验及文件 |
China National Standards applications |
English PDF |
| GB/T 25343.4-2010 |
Railway applications - Welding of railway vehicles and components - Part 4: Production requirements 铁路应用 轨道车辆及其零部件的焊接 第4部分：生产要求 |
China National Standards applications |
English PDF |
| GB/T 25343.3-2010 |
Railway applications - Welding of railway vehicles and components - Part 3: Design requirements 铁路应用 轨道车辆及其零部件的焊接 第3部分：设计要求 |
China National Standards applications |
English PDF |
| GB/T 25343.2-2010 |
Railway applications - Welding of railway vehicles and components - Part 2: Quality requirements and certification of welding manufacturer 铁路应用 轨道车辆及其零部件的焊接 第2部分：焊接制造商的质量要求及认证 |
China National Standards applications |
English PDF |
| GB/T 25343.1-2010 |
Railway applications - Welding of railway vehicles and components - Part 1: General 铁路应用 轨道车辆及其零部件的焊接 第1部分：总则 |
China National Standards applications |
English PDF |
| GB/T 14099.5-2010 |
Gas turbines - Procurement - Part 5: applications for petroleum and natural gas industries 燃气轮机 采购 第5部分：在石油和天然气工业中的应用 |
China National Standards applications |
English PDF |
| GB/T 25080-2010 |
Niobium - Titannium alloy billets, bar and rod for superconducting applications 超导用Nb-Ti合金棒坯、粗棒和细棒 |
China National Standards applications |
English PDF |
| GB/T 25077-2010 |
Acoustics - Materials for acoustical applications - Determination of airflow resistance 声学 多孔吸声材料流阻测量 |
China National Standards applications |
English PDF |
| GB/T 25122.2-2010 |
Railway applications - Power convertors installed on board rolling stock - Part 2: Additional technical information 轨道交通 机车车辆用电力变流器 第2部分：补充技术资料 |
China National Standards applications |
English PDF |
| GB/T 25122.1-2010 |
Railway applications - Power convertors installed on board rolling stock - Part 1: Characteristics and test methods 轨道交通 机车车辆用电力变流器 第1部分：特性和试验方法 |
China National Standards applications |
English PDF |
| GB/T 25121-2010 |
Railway applications - Rolling stock equipment - Capacitors for power electronics 轨道交通 机车车辆设备 电力电子电容器 |
China National Standards applications |
English PDF |
| GB/T 25120-2010 |
Railway applications - Traction transformers and inductors on board rolling stock 轨道交通 机车车辆牵引变压器和电抗器 |
China National Standards applications |
English PDF |
| GB/T 25119-2010 |
Railway applications - Electronic equipments used on rail vehicles 轨道交通 机车车辆电子装置 |
China National Standards applications |
English PDF |
| GB/T 25117.3-2010 |
Railway applications - Rolling stock - Combined testing - Part 3: Combined testing of alternating current motors,fed by an indirect converter,and their control system 轨道交通 机车车辆 组合试验 第3部分：间接变流器供电的交流电动机及其控制系统的组合试验 |
China National Standards applications |
English PDF |
| GB/T 25117.2-2010 |
Railway applications - Rolling stock - Combined testing - Part 2: Combined testing of chopper-fed direct current traction motors and their control system 轨道交通 机车车辆 组合试验 第2部分：斩波器供电的直流牵引电动机及其控制系统的组合试验 |
China National Standards applications |
English PDF |
| GB/T 25117.1-2010 |
Railway applications - Rolling stock - Combined testing - Part 1: Combined testing of inverter-fed alternating current motors and their control system 轨道交通 机车车辆 组合试验 第1部分：逆变器供电的交流电动机及其控制系统的组合试验 |
China National Standards applications |
English PDF |
| GB/T 25092-2010 |
Dry-type air-core smoothing reactors for HVDC applications 高压直流输电用干式空心平波电抗器 |
China National Standards applications |
English PDF |
| GB/T 25082-2010 |
Specification and technical requirements of oil-immersed convertor transformers for 800kV DC applications 800kV直流输电用油浸式换流变压器技术参数和要求 |
China National Standards applications |
English PDF |
| GB/T 25065-2010 |
Information security technology - Public key infrastructure - Security requirements for signature creation applications 信息安全技术 公钥基础设施 签名生成应用程序的安全要求 |
China National Standards applications |
English PDF |
| GB/T 25110.3-2010 |
Industrial automation systems and integration - Distributed installation in industrial applications - Part 3: Power distribution bus 工业自动化系统与集成 工业应用中的分布式安装 第3部分：配电总线 |
China National Standards applications |
English PDF |
| GB/T 25110.2-2010 |
Industrial automation systems and integration - Distributed installation in industrial applications - Part 2: Hybrid communication bus 工业自动化系统与集成 工业应用中的分布式安装 第2部分：混合通信总线 |
China National Standards applications |
English PDF |
| GB/T 25110.1-2010 |
Industrial automation systems and integration - Distributed installation in industrial applications - Part 1: Sensors and actuators 工业自动化系统与集成 工业应用中的分布式安装 第1部分：传感器和执行器 |
China National Standards applications |
English PDF |
| GB/T 24734.9-2009 |
Technical product documentation - Digital product definition data practices - Part 9: Application for datum applications 技术产品文件 数字化产品定义数据通则 第9部分：基准的应用 |
China National Standards applications |
English PDF |
| GB/T 3639-2009 |
Seamless cold-drawn or cold-rolled steel tubes for precision applications 冷拔或冷轧精密无缝钢管 |
China National Standards applications |
English PDF |
| GB/T 24339.1-2009 |
Railway applications - Communication,signalling and processing systems - Part 1: Safety-related communication in closed transmission systems 轨道交通 通信、信号和处理系统 第1部分：封闭式传输系统中的安全相关通信 |
China National Standards applications |
English PDF |
| GB/T 24338.6-2009 |
Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply installations and apparatus 轨道交通 电磁兼容 第5部分：地面供电装置和设备的发射与抗扰度 |
China National Standards applications |
English PDF |
| GB/T 24338.5-2009 |
Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus 轨道交通 电磁兼容 第4部分：信号和通信设备的发射与抗扰度 |
China National Standards applications |
English PDF |
| GB/T 24338.4-2009 |
Railway applications - Electromagnetic compatibility - Part 3-2: Rolling stock - Apparatus 轨道交通 电磁兼容 第3-2部分：机车车辆 设备 |
China National Standards applications |
English PDF |
| GB/T 24338.3-2009 |
Railway applications - Electromagnetic compatibility - Part 3-1: Rolling stock - Train and complete vehicle 轨道交通 电磁兼容 第3-1部分：机车车辆 列车和整车 |
China National Standards applications |
English PDF |
| GB/T 24338.1-2009 |
Railway applications - Electromagnetic compatibility - Part 1: General 轨道交通 电磁兼容 第1部分：总则 |
China National Standards applications |
English PDF |
| GB/T 15908-2009 |
Plastics hoses and hose assemblies - Textile-reinforced types for hydraulic applications - Specification 塑料软管及软管组合件 液压用织物增强型 规范 |
China National Standards applications |
English PDF |
| GB/T 16588-2009 |
Belt drives - Pulleys and V-ribbed belts for industrial applications - PH, PJ, PK, PL and PM profiles:dimensions 带传动 工业用多楔带与带轮 PH、PJ、PK、PL和PM型：尺寸 |
China National Standards applications |
English PDF |
| GB/T 23609-2009 |
Seamless copper alloy tube for water desalting applications 海水淡化装置用铜合金无缝管 |
China National Standards applications |
English PDF |
| GB/T 786.1-2009 |
Fluid power systems and components - Graphic symbols and circuit diagrams - Part 1: Graphic symbols for conventional use and data-processing applications 流体传动系统及元件图形符号和回路图 第1部分：用于常规用途和数据处理的图形符号 |
China National Standards applications |
English PDF |
| GB/T 4456-2008 |
Polyethylene blown film for packaging applications 包装用聚乙烯吹塑薄膜 |
China National Standards applications |
English PDF |
| GB/T 20111.2-2008 |
Electrical insulation systems - Procedures for thermal evaluation - Part 2: Specific requirements for general-purpose models - Wire-wound applications 电气绝缘系统 热评定规程 第2部分：通用模型的特殊要求 散绕绕组应用 |
China National Standards applications |
English PDF |
| GB/T 15166.6-2008 |
High-voltage alternating-current fuses - Part 6: Application guide for the selection of fuse-links of high-voltage fuses for transformer circuit applications 高压交流熔断器 第6部分：用于变压器回路的高压熔断器的熔断件选用导则 |
China National Standards applications |
English PDF |
| GB/T 15166.5-2008 |
High-voltage alternating-current fuses - Part 5: Specification for high-voltage fuse-links for motor circuit applications 高压交流熔断器 第5部分：用于电动机回路的高压熔断器的熔断件选用导则 |
China National Standards applications |
English PDF |
| GB/T 22270.1-2008 |
Industrial automation systems and integration - Service interface for testing applications - Part 1: Overview 工业自动化系统与集成 测试应用的服务接口 第1部分：概述 |
China National Standards applications |
English PDF |
| GB/T 22073-2008 |
Thermal turbines for industrial applications (steam turbines, gas expansion turbines) - General requirements 工业用途热力涡轮机(汽轮机、气体膨胀涡轮机) 一般要求 |
China National Standards applications |
English PDF |
| GB 13539.3-2008 |
Low-voltage fuses - Part 3:Supplementary requirements for fuses for use by unskilled persons(fuses mainly for household and similar applications) - Examples of standardized systems of fuses A to F 低压熔断器 第3部分: 非熟练人员使用的熔断器的补充要求(主要用于家用和类似用途的熔断器) 标准化熔断器系统示例A至F |
China National Standards applications |
English PDF |
| GB/T 21973-2008 |
Technical specification for YZR3 range of wound-rotor three-phase induction motors for crane & metallurgical applications YZR3系列起重及冶金用绕线转子三相异步电动机技术条件 |
China National Standards applications |
English PDF |
| 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 applications |
English PDF |
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