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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.
  •  China "letter" GB Standards List:
  • Standard  Code Standard Title Standard Class Order
    GB/T 38001.11-2020 Flexible display devices—Part 1-1: Terminology and letter symbols
    柔性显示器件 第1-1部分:术语与文字符号
    China National Standards
    letter

    English PDF
    GB/T 36919-2019 Organic light-emitting diode (OLED)lighting—Terminology and letter symbols
    有机发光二极管照明 术语和文字符号
    China National Standards
    letter

    English PDF
    GB/T 33925.2-2018 Liquid pumps and installation—General terms, definitions, quantities, letter symbols and units—Part 2: Pumping system
    液体泵及其装置-通用术语、定义、量、字符和单位-第2部分:泵系统
    China National Standards
    letter

    English PDF
    GB/T 36489-2018 Flow chart of air separation plant—Graphical symbols and letter codes
    空气分离设备流程图 图形符号和文字代号
    China National Standards
    letter

    English PDF
    GB/T 33925.1-2017 Liquid pumps and installation—General terms, definitions, quantities, letter symbols and units—Part 1: Liquid pumps
    液体泵及其装置 通用术语、定义、量、字符和单位 第1部分:液体泵
    China National Standards
    letter

    English PDF
    GB/T 34957-2017 Information technology—Layout of digital keyboard for Korean letter
    信息技术 基于数字键盘的朝鲜文字母布局
    China National Standards
    letter

    English PDF
    GB/T 34951-2017 Information technology—Layout of digital keyboard for Sibo letter
    信息技术 基于数字键盘的锡伯文字母布局
    China National Standards
    letter

    English PDF
    GB/T 4270-1999 Graphical symbols and letter codes for thermal engineering in the technical documentation
    技术文件用热工图形符号与文字代号
    China National Standards
    letter

    English PDF
    GB/T 3431.2-1986 letter symbols for semiconductor integrated circuits--Letter symbols for function of pins
    半导体集成电路文字符号 引出端功能符号
    China National Standards
    letter

    English PDF
    GB/T 31921-2015 Information technology—Layout of digital keyboard for Kyrgyz letter
    信息技术 基于数字键盘的柯尔克孜文字母布局
    China National Standards
    letter

    English PDF
    GB/T 31920-2015 Information technology—Layout of digital keyboard for Uyghur letter
    信息技术 基于数字键盘的维吾尔文字母布局
    China National Standards
    letter

    English PDF
    GB/T 31919-2015 Information technology—Layout of digital keyboard for Kazakh letter
    信息技术 基于数字键盘的哈萨克文字母布局
    China National Standards
    letter

    English PDF
    GB/T 30096-2013 Major letter symbols for laboratory instrument and equipment
    实验室仪器和设备常用文字符号
    China National Standards
    letter

    English PDF
    GB/T 30090-2013 Standard guide for temperature electromotive force(emf) tables for non-letter designated thermocouple combinations
    无字母代号热电偶分度表
    China National Standards
    letter

    English PDF
    GB/T 2987-1996 letter symbols of parameter for electronic tubes
    电子管参数符号
    China National Standards
    letter

    English PDF
    GB/T 26802.4-2011 Industrial control computer system - General specification - Part 2: letter symbol
    工业控制计算机系统 通用规范 第4部分:文字符号
    China National Standards
    letter

    English PDF
    GB/T 2625-1981 Process detection and controlflow chart--Symbols and letter codes
    过程检测和控制流程图用图形符号和文字代号
    China National Standards
    letter

    English PDF
    GB/T 2423.53-2005 Environmental testing for electric and electronic products-Part 2:Test methods-Test Xb:Abrasion of markings and letterings caused by rubbing of fingers and hands
    电工电子产品环境试验 第2部分:试验方法 试验Xb:由手的磨擦造成标记和印刷文字的磨损
    China National Standards
    letter

    English PDF
    GB/T 22181.1-2008 Plasma display panels - Part 1: Terminology and letter symbols
    等离子体显示器件 第1部分 术语与文字符号
    China National Standards
    letter

    English PDF
    GB/T 20939-2007 Structuring principles for technical products and technical product documentation - letter codes - Main classes and subclasses of objects according to their purpose and task
    技术产品及技术产品文件结构原则 字母代码 按项目用途和任务划分的主类和子类
    China National Standards
    letter

    English PDF
    GB/T 20871.2-2007 Organic light emitting diode display - Part 2: Terminology and letter symbols
    有机发光二极管显示器 第2部分:术语与文字符号
    China National Standards
    letter

    English PDF
    GB/T 18594-2001 Technical product documentation--lettering CAD lettering of the latin alphabet numerals and marks
    技术产品文件 字体 拉丁字母、数字和符号的CAD字体
    China National Standards
    letter

    English PDF
    GB/T 17971.8-2010 Information technology - Keyboard layouts for text and office systems - Part 8: Allocation of letters to the keys of a numeric keypad
    信息技术 文本和办公系统的键盘布局 第8部分:数字小键盘上字母的分配
    China National Standards
    letter

    English PDF
    GB/T 17485-1998 Hydraulic fluid power--Pumps,motors and integral transmissions--Parameter definitions and letter symbols
    液压泵、马达和整体传动装置参数定义和字母符号
    China National Standards
    letter

    English PDF
    GB/T 14691.6-2005 Technical product documentation-lettering-Part6:Cyrillic alphabet
    技术产品文件 字体 第6部分:古代斯拉夫字母
    China National Standards
    letter

    English PDF
    GB/T 14691.4-2005 Technical product documentation-lettering-part4:Diacritical and particular marks for the Latin alphabet
    技术产品文件 字体 第4部分:拉丁字母的表示区别与特殊标识
    China National Standards
    letter

    English PDF
    GB/T 1418-1995 letter symbols for telecommunication equipment
    电信设备通用文字符号
    China National Standards
    letter

    English PDF
    GB/T 13394-1992 letter symbols to be used in electrical technology--Symbols for quantities to be used for rotating electrical machines
    电工技术用字母符号 旋转电机量的符号
    China National Standards
    letter

    English PDF
    GB/T 12082-1989 letter symbols for gas lasers
    气体激光器文字符号
    China National Standards
    letter

    English PDF
    GB/T 11499-2001 letter symbols for discrete semiconductor devices
    半导体分立器件文字符号
    China National Standards
    letter

    English PDF

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