China National Standards

China Mag GB Standards English PDF List


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 "Mag" GB Standards English PDF List:
  • Standard  Code Standard Title Standard Class Order
    GB/Z 17625.5-2000 ElectroMagnetic compatibility--Limits--Assessment of emission limits for fluctuating loads in MV and HV power systems
    电磁兼容 限值 中、高压电力系统中波动负荷发射限值的评估
    China National Standards
    Mag

    English PDF
    GB/Z 17625.4-2000 ElectroMagnetic compatibility--Limits--Assessment of emission limits for distorting loadsin MV and HV power systems
    电磁兼容 限值 中、高压电力系统中畸变负荷发射限值的评估
    China National Standards
    Mag

    English PDF
    GB/Z 17625.3-2000 ElectroMagnetic compatibility--Limits--Limitation of voltage fluctuations and flicker in low-voltage power supply systems for equipment with rated current greater than 16 A
    电磁兼容 限值 对额定电流大于16 A的设备在低压供电系统中产生的电压波动和闪烁的限制
    China National Standards
    Mag

    English PDF
    GB/T 788-1999 Formats and their sizes of books and Magazines
    图书和杂志开本及其幅面尺寸
    China National Standards
    Mag

    English PDF
    GB/T 12496.21-1999 Test methods of wooden activated carbon--Determination of calcium and Magnesium content
    木质活性炭试验方法 钙镁含量的测定
    China National Standards
    Mag

    English PDF
    GB/T 12606-1999 Steel tubes--The testing method of Magnetic flux leakage
    钢管漏磁探伤方法
    China National Standards
    Mag

    English PDF
    GB/T 7399.3-1999 Helical-scan video tape cassette system using 12.65 mm Magnetic tape on type S-VHS
    S-VHS型12.65 mm螺旋扫描盒式磁带录像系统
    China National Standards
    Mag

    English PDF
    GB/T 17800.3-1999 Helical-scan video tape cassette systems using 8 mm Magnetic tape--8 mm video--Part 3:High-band speci-fications for Hi 8
    8 mm磁带螺旋扫描盒式录像系统(8 mm录像) 第3部分:Hi 8高带规范
    China National Standards
    Mag

    English PDF
    GB/T 17800.2-1999 Helical-scan video tape cassette systems using 8 mm Magnetic tape--8 mm video--Part 2:PCM multi-track audio system
    8 mm磁带螺旋扫描盒式录像系统(8 mm录像) 第2部分:PCM多迹音频系统
    China National Standards
    Mag

    English PDF
    GB/T 17800.1-1999 Helical-scan video tape cassette systems using 8 mm Magnetic tape--8 mm video--Part 1:General speci-fications
    8 mm磁带螺旋扫描盒式录像系统(8 mm录像) 第1部分:总规范
    China National Standards
    Mag

    English PDF
    GB/T 17799.1-1999 ElectroMagnetic compatibility--Generic standards--Immunity for residential,commercial and light-industrial environments
    电磁兼容 通用标准 居住、商业和轻工业环境中的抗扰度试验
    China National Standards
    Mag

    English PDF
    GB/T 17776-1999 Determination of sulfur in feedstuffs--Magnesium nitrate method
    饲料中硫的测定 硝酸镁法
    China National Standards
    Mag

    English PDF
    GB 17740-1999 General ruler for earthquake Magnitude
    地震震级的规定
    China National Standards
    Mag

    English PDF
    GB/T 17626.10-1998 ElectroMagnetic compatibility--Testing and measurement techniques--Damped oscillatory magnetic field immunity test
    电磁兼容 试验和测量技术 阻尼振荡磁场抗扰度试验
    China National Standards
    Mag

    English PDF
    GB/T 17624.1-1998 ElectroMagnetic compatibility--General--Application and interpretation of fundamental definitions and terms
    电磁兼容 综述 电磁兼容基本术语和定义的应用与解释
    China National Standards
    Mag

    English PDF
    GB/T 17619-1998 Limits and methods of testing for immunity of electrical/electronic sub-assemblies in vehicles to electroMagnetic radiation
    机动车电子电器组件的电磁辐射抗扰性限值和测量方法
    China National Standards
    Mag

    English PDF
    GB/T 17555-1998 Information technology--Computer graphics and iMage processing--Conformance testing of implementations of graphics standards
    信息技术 计算机图形与图像处理 图形标准实现的一致性测试
    China National Standards
    Mag

    English PDF
    GB/T 671-1998 Chemical reagent--Magnesium sulfate heptahydrate
    化学试剂 硫酸镁
    China National Standards
    Mag

    English PDF
    GB/T 15153.1-1998 Telecontrol equipment and systems--Part 2:Operating conditions--Section 1:Power supply and electroMagnetic compatibility
    远动设备及系统 第2部分:工作条件 第1篇:电源和电磁兼容性
    China National Standards
    Mag

    English PDF
    GB/T 17235.2-1998 Information technology--Digital compression and coding of continuous-tone still iMages--Part 2:Compliance testing
    信息技术 连续色调静态图像的数字压缩及编码 第2部分:一致性测试
    China National Standards
    Mag

    English PDF
    GB/T 17235.1-1998 Information technology--Digital compression and coding of continuous-tone still iMages--Part 1:Requirements and guidelines
    信息技术 连续色调静态图像的数字压缩及编码 第1部分:要求和指南
    China National Standards
    Mag

    English PDF
    GB/T 17205-1998 Exchange of television programmes on Magnetic tape
    电视节目磁带交换
    China National Standards
    Mag

    English PDF
    GB 17149.5-1997 Diagnostic criteria and principles of management of nail daMage induced by cosmetics
    化妆品甲损害诊断标准及处理原则
    China National Standards
    Mag

    English PDF
    GB 17149.4-1997 Diagnostic criteria and principles ofmanagement of hair daMage induced by cosmetics
    化妆品毛发损害诊断标准及处理原则
    China National Standards
    Mag

    English PDF
    GB/T 17006-1997 Evaluation and routine testing in medical iMaging departments--Part 2-6:Constancy tests--X-ray equipment for computed tomography
    医用成像部门的评价及例行试验 第2-6部分:X射线计算机体层摄影设备稳定性试验
    China National Standards
    Mag

    English PDF
    GB/T 4638-1997 Picture iMage area and photographic sound record on 35mm motion-picture release prints--Position and dimensions
    35mm电影发行拷贝上画面和光学声迹的位置和尺寸
    China National Standards
    Mag

    English PDF
    GB 16840.2-1997 Technical determination methods for electrical fire cause--Part 2:Residual Magnetic method
    电气火灾原因技术鉴定方法 第2部分:剩磁法
    China National Standards
    Mag

    English PDF
    GB/T 3481-1997 Cears--Wear and daMage to gear teeth--Terminology
    齿轮轮齿磨损和损伤术语
    China National Standards
    Mag

    English PDF
    GB/T 16601-1996 Test methods for laser induced daMage threshold of optical surfaces--Part 1: 1 on 1 test
    光学表面激光损伤阈值测试方法 第1部分:1对1测试
    China National Standards
    Mag

    English PDF
    GB/T 4698.17-1996 Sponge titanium,titanium and titanium alloys--Determination of Magnesium content--Flame atomic absorption spectrometric method
    海绵钛、钛及钛合金化学分析方法 火焰原子吸收光谱法测定镁量
    China National Standards
    Mag

    English PDF
    GB/T 8494-1996 General specification for Magnetic heads for cassette tape recorders
    盒式磁带录音机磁头总技术条件
    China National Standards
    Mag

    English PDF
    GB/T 5439-1996 The recording and exchanging of sound broadcasting programmes on stereophonic Magnetic tape
    立体声广播节目(磁带)的录制和交换
    China National Standards
    Mag

    English PDF
    GB 16195-1996 Health standard for Magnesium oxide (fume) in the air of workplace
    车间空气中氧化镁(烟)卫生标准
    China National Standards
    Mag

    English PDF
    GB/T 1871.5-1995 Phosphaterock and concentrate--Determination of Magnesium oxide content--Flame atomic absorption spectrometric and volumetric methods
    磷矿石和磷精矿中氧化镁含量的测定 火焰原子吸收光谱法和容量法
    China National Standards
    Mag

    English PDF
    GB/T 15679.4-1995 Samarium cobalt permanent Magnet alloy powder--Determination of oxygen content
    钐钴永磁合金粉化学分析方法 氧量的测定
    China National Standards
    Mag

    English PDF
    GB/T 15679.3-1995 Samarium cobalt permanent Magnet alloy powder--Determination of calcium content
    钐钴永磁合金粉化学分析方法 钙量的测定
    China National Standards
    Mag

    English PDF
    GB/T 15679.2-1995 Samarium cobalt permanent Magnet alloy powder--Determination of iron content
    钐钴永磁合金粉化学分析方法 铁量的测定
    China National Standards
    Mag

    English PDF
    GB/T 15679.1-1995 Samarium cobalt permanent Magnet alloy powder--Determination of samarium and cobalt
    钐钴永磁合金粉化学分析方法 钐、钴量的测定
    China National Standards
    Mag

    English PDF
    GB/T 15522-1995 FM audio recording of helical-scan video tape cassette system using 12.65mm Magnetic tape on type VHS
    VHS型12.65 mm螺旋扫描盒式录像系统的调频音频记录
    China National Standards
    Mag

    English PDF
    GB/T 5875-1994 Recorded characteristics for Magnetic sound records on 35mm and 16mm motion-picture films containing no picture
    35mm和16mm磁片的录音特性
    China National Standards
    Mag

    English PDF
    GB/T 4637-1994 Head gaps andsound records for three-,four-,or six-track Magnetic sound records on 35mmmotion-picture film containing no picture--Positions and width dimensions
    35mm磁片上三声轨、四声轨和六声轨磁头隙缝的位置和宽度尺寸
    China National Standards
    Mag

    English PDF
    GB/T 2927-1994 Optical printing ratios forenlargement and reduction of motion-picture film iMages--specification
    电影影片画幅放大或缩小光学印片比率技术要求
    China National Standards
    Mag

    English PDF
    GB/T 15131.1-1994 Information processing--Data interchange on 130mm flexible disk cartridges using modified frequency modulation recording at 13262 ftprad,on 80 tracks on each side--Part 1:Dimensional, physical and Magnetic characteristics
    信息处理 数据交换用130 mm改进调频制记录的位密度为13262 磁通翻转/弧度、每面80条磁道的软磁盘 第一部分:尺寸、物理性能和磁性能
    China National Standards
    Mag

    English PDF
    GB/T 15130.1-1994 Information processing--Data interchange on 90mm (35in) flexible disk cartridges using modified frequency modulation recording at 15916 ftprad, on 80 tracks on each side--Part1:Dimensional, physical and Magnetic characteristics
    信息处理 数据交换用90 mm改进调频制记录的位密度为15916 磁通翻转/弧度、每面80条磁道的软磁盘 第一部分:尺寸、物理性能和磁性能
    China National Standards
    Mag

    English PDF
    GB/T 15057.2-1994 Limestone for chemical industry--Determination of calcium and Magnesium oxides content
    化工用石灰石中氧化钙和氧化镁含量的测定
    China National Standards
    Mag

    English PDF
    GB/T 15013-1994 Magnetic characters and magnetic valuesterms definitions for procision alloys
    精密合金用磁学特性和磁学量术语
    China National Standards
    Mag

    English PDF
    GB/T 14991-1994 Deformable permanent-Magnet steels
    变形永磁钢
    China National Standards
    Mag

    English PDF
    GB/T 14989-1994 Iron-cobalt-vanadium permanent-Magnet alloys
    铁钴钒永磁合金
    China National Standards
    Mag

    English PDF
    GB/T 14707-1993 Proofreader’s marks for iMage reproduction
    图像复制用校对符号
    China National Standards
    Mag

    English PDF
    GB 3102.6-1993 Quantities and units of light and related electroMagnetic radiations
    光及有关电磁辐射的量和单位
    China National Standards
    Mag

    English PDF
    GB 3102.5-1993 Quantities and units of electricity and Magnetism
    电学和磁学的量和单位
    China National Standards
    Mag

    English PDF
    GB/T 14184-1993 The methods of measurement for iMage-converter tubes and image intensifier tubes
    变像管和像增强管测试方法
    China National Standards
    Mag

    English PDF
    GB/T 14183-1993 Blank detail specification for iMage-converter tubes and image intensifier tubes
    变像管和像增强管空白详细规范(可供认证用)
    China National Standards
    Mag

    English PDF
    GB/T 14182-1993 Generic specification for iMage-converter tubes and image intensifier tubes
    变像管和像增强管总规范(可供认证用)
    China National Standards
    Mag

    English PDF
    GB/T 14082-1993 Generic specification of 9-track digital Magnetic head for digital magnetic tape unit
    9磁道数字磁带机磁头通用技术条件
    China National Standards
    Mag

    English PDF
    GB/T 13998-1992 Measuring methods of the Magnetic induced longitudinal EMF, magnetic induced voltage with respect to earth, electric induced current and psophometric voltage ontelecommunication lines
    电信线路磁感应纵电动势和对地电压、电感应电流及杂音计电压的测量方法
    China National Standards
    Mag

    English PDF
    GB/T 13919-1992 35mm cinematography--Magnetic sound test film--Technical specification
    35 mm电影 磁性声带检验片技术规范
    China National Standards
    Mag

    English PDF
    GB/T 13823.4-1992 Methods for the calibration of vibration and shock pick-ups--Testing of Magnetic field sensitivity
    振动与冲击传感器的校准方法 磁灵敏度测试
    China National Standards
    Mag

    English PDF
    GB/T 13820-1992 Magnesium alloy castings
    镁合金铸件
    China National Standards
    Mag

    English PDF
    GB/T 13747.9-1992 Zirconium and zirconium alloys--Determination of Magnesium content--Flame absorption spectrometric method
    锆及锆合金化学分析方法 火焰原子吸收光谱法测定镁量
    China National Standards
    Mag

    English PDF
    GB/T 13744-1992 The measurement of coating thickness for electro-deposited nickel coatings on Magnetic and non-magnetic substracts
    磁性和非磁性基体上镍电镀层厚度的测量
    China National Standards
    Mag

    English PDF
    GB/T 13743-1992 D.C.Magnetoelectric galvanometer
    直流磁电系检流计
    China National Standards
    Mag

    English PDF
    GB 13618-1992 Requirements of electroMagnetic environment protection for air defense surveillance radar station
    对空情报雷达站电磁环境防护要求
    China National Standards
    Mag

    English PDF
    GB/T 13580.13-1992 Determination of calcium and Magnesium in the wet precipitation--Atomic absorption spectrophotometry
    大气降水中钙、镁的测定 原子吸收分光光度法
    China National Standards
    Mag

    English PDF
    GB/T 13371-1992 Determination of copper,iron,nickel,Magnesium,manganese, zinc and silver in uranium dioxide powders and pellets by atomic absorption spectrophotometry
    二氧化铀粉末和芯块中铜、铁、镍、镁、锰、锌、银的测定 原子吸收分光光度法
    China National Standards
    Mag

    English PDF
    GB/T 13266-1991 Water quality--Determination of the acute toxicity of substance to Daphnia (Daphnia Magna straus)
    水质 物质对蚤类(大型蚤)急性毒性测定方法
    China National Standards
    Mag

    English PDF
    GB/T 11848.15-1991 Determination of iron,calcium,Magnesium,molybdenum,titanium and vanadium in uranium oreconcentrate by atomic absorption spectrometry
    铀矿石浓缩物中铁、钙、镁、钼、钛、钒的测定 原子吸收光谱法
    China National Standards
    Mag

    English PDF
    GB/T 1177-1991 Casting Magnesium alloys
    铸造镁合金
    China National Standards
    Mag

    English PDF
    GB/T 12508-1990 Alphanumeric character sets for optical recognition--Part 2:Character set OCR-B--Shapes and dimensions of the printed iMage
    光学识别用字母数字字符集 第二部分:OCR-B 字符集印刷图象的形状和尺寸
    China National Standards
    Mag

    English PDF
    GB/T 12055-1989 Information processing--Magnetic tape cassette and cartridge labelling and file structurefor information interchange
    信息处理 信息交换用的盒式磁带和卡式磁带的标号和文卷结构
    China National Standards
    Mag

    English PDF
    GB/T 12053-1989 Alphanumeric character sets for optical recognition--Part 1:Character set OCR-A--Shapes and dimensions of the printed iMage
    光学识别用字母数字字符集 第一部分:OCR-A 字符集印刷图象的形状和尺寸
    China National Standards
    Mag

    English PDF
    GB/T 11905-1989 Water quality--Determination ofcalcium and Magnesium--Atomic absorption spectrophotometric method
    水质 钙和镁的测定 原子吸收分光光度法
    China National Standards
    Mag

    English PDF
    GB/T 223.46-1989 Methods for chemical analysis of iron,steel and alloy--The flame atomic absorption spectrometric method for the determination of Magnesium content
    钢铁及合金化学分析方法 火焰原子吸收光谱法测定镁量
    China National Standards
    Mag

    English PDF
    GB/T 11209-1989 Magnetic rubber--Determination method of magnetic properties
    磁性橡胶磁性能的测定方法
    China National Standards
    Mag

    English PDF
    GB/T 10846-1989 General specifications of marine autopilot with Magnetic compass
    船用磁罗经自动操舵仪通用技术条件
    China National Standards
    Mag

    English PDF
    GB/T 8565.3-1988 Information processing--Coded character sets for text communication--Part 3:Control functions for page-iMage format
    信息处理 文本通信用编码字符集 第三部分:按页成象格式用控制功能
    China National Standards
    Mag

    English PDF
    GB/T 10192-1988 Dimensions of screw cores made of ferroMagnetic oxides
    磁性氧化物制成的螺纹磁芯的尺寸
    China National Standards
    Mag

    English PDF
    GB/T 10129-1988 Methods of measurement of Magnetic properties of magnetic steel sheet and strip at medium frequencies
    电工钢片(带)中频磁性能测量方法
    China National Standards
    Mag

    English PDF
    GB/T 9718-1988 Information processing--General purpose reels with 8mm centre hole for Magnetic tape for interchange instrumentation applications
    信息处理 互换计测磁带用 8mm中心孔通用带盘
    China National Standards
    Mag

    English PDF
    GB/T 9717-1988 Information processing--Unrecorded Magnetic tapes for interchange instrumentation applications -- Generaldimensional requirements
    信息处理 互换用未记录计测磁带的一般尺寸要求
    China National Standards
    Mag

    English PDF
    GB/T 9716-1988 Information processing--Unrecorded 12.7mm (0.5in)wide Magnetic tape for information interchange-32ftpmm(800 ftpi)NRZ1,126ftpmm(3200ftpi)phase encoded and 356ftpmm(9042ftpi) NRZ1
    信息处理 信息交换用9磁道,12.7mm(0.5in)未记录磁带 32ftpmm(800ftpi)NRZ1制,126ftpmm(3200ftpi)调相制和356ftpmm(9042ftpi)NRZ1制
    China National Standards
    Mag

    English PDF
    GB/T 9715-1988 Information processing--Precision reels for Magnetic tape used in interchange instrumentation applications
    信息处理 互换计测磁带用的精密带盘
    China National Standards
    Mag

    English PDF
    GB/T 9714-1988 Information processing--General purpose hubs and reels with 76mm centre hole for Magnetic tape usedin interchange instrumentation applications
    信息处理 互换计测磁带用的76mm中心孔通用带盘和盘芯
    China National Standards
    Mag

    English PDF
    GB/T 9713-1988 Information processing--Recording characteristics of instrumentation Magnetic tape (includingtelemetry systems)--Interchange requirements
    信息处理 计测磁带(包括遥测系统)的记录特性 互换要求
    China National Standards
    Mag

    English PDF
    GB/T 9636-1988 Aerial rods and slabs made of Magnetic oxides
    磁性氧化物制成的圆天线棒和扁天线棒
    China National Standards
    Mag

    English PDF
    GB/T 9629-1988 Inductor and transformer cores for telecommunications--Part 4:Blank detail specification--Magnetic oxide cores for transformers and chokes for power applications--Assessment level A
    通信用电感器和变压器磁芯 第四部分:空白详细规范 电源变压器和扼流圈用磁性氧化物磁芯 评定水平 A(可供认证用)
    China National Standards
    Mag

    English PDF
    GB/T 9628-1988 Inductor and transformer cores for telecommunications--Part4:sectional specification--Magnetic oxide cores for transformers and chokes forpower applications
    通信用电感器和变压器磁芯 第四部分:分规范 电源变压器和扼流圈用磁性氧化物磁芯(可供认证用)
    China National Standards
    Mag

    English PDF
    GB/T 9627-1988 Inductor and transformer cores for telecommunications--Part 3:Blank detail specification--Magnetic oxide cores for broad-band transformers--Assessment levels A and B
    通信用电感器和变压器磁芯 第三部分:空白详细规范 宽带变压器用磁性氧化物磁芯评定水平 A和B (可供认证用)
    China National Standards
    Mag

    English PDF
    GB/T 9626-1988 Inductor and transformer cores for telecommunications--Part 3:Sectional specification--Magnetic oxide cores for broad-band transformers
    通信用电感器和变压器磁芯 第三部分:分规范 宽带变压器用磁性氧化物磁芯 (可供认证用)
    China National Standards
    Mag

    English PDF
    GB/T 9625-1988 Inductor and transformer cores for telecommunications--Part 2:Blank detail specification--Magnetic oxide cores for inductor applications--Assessment level A
    通信用电感器和变压器磁芯 第二部分:空白详细规范 电感器用磁性氧化物磁芯 评定水平 A (可供认证用)
    China National Standards
    Mag

    English PDF
    GB/T 9624-1988 Inductor and transformer cores for telecommunications--Part 2:sectionalspecification--Magnetic oxide cores for inductor applications
    通信用电感器和变压器磁芯 第二部分:分规范 电感器用磁性氧化物磁芯 (可供认证用)
    China National Standards
    Mag

    English PDF
    GB/T 9602-1988 Measuring methods of electrical properties of continuous wave Magnetrons
    连续波磁控管电性能测试方法
    China National Standards
    Mag

    English PDF
    GB/T 9363-1988 Information processing--9-Track, 12.7mm (0.5in) wide Magnetictape for information interchange--Format and recording,using group coding at 246 cpmm(6250 cpi)
    信息处理 信息交换用9磁道12.7mm(0.5in)磁带成组编码方式246 cpmm (6250 cpi) 的格式及记录
    China National Standards
    Mag

    English PDF
    GB/T 9048-1988 IMage area produced by 65mm and 70mm motion-picture camera aperture and maximum projectable image area on 70mm motion-picture prints--Positions and dimensions
    65mm和70mm电影摄影机片窗所形成的影像和70mm电影拷贝最大可放映画面的位置和尺寸
    China National Standards
    Mag

    English PDF
    GB/T 7419-1987 Information processing--Implementation of the 7-bit coded character set and its 7-bit and 8-bit extensions on 3.81mm Magnetic tape cassette for data interchange
    信息处理 数据交换用七位编码字符集及其七位与八位扩充在3.81mm盒式磁带上的实现方法
    China National Standards
    Mag

    English PDF
    GB/T 7399-1987 Helical-scan video tape cassette system using 12.65 mm Magnetic tape on type VHS
    VHS 型12.65 mm螺旋扫描盒式磁带录像系统
    China National Standards
    Mag

    English PDF
    GB/T 7477-1987 Water quality--Determination of thesum of calcium and Magnesium--EDTA titrimetric method
    水质 钙和镁总量的测定 EDTA滴定法
    China National Standards
    Mag

    English PDF
    GB/T 6730.14-1986 Methods for chemical analysis of iron ores--The flame atomic absorption spectrophotometric method for the determination of calcium and Magnesium content
    铁矿石化学分析方法 原子吸收分光光度法测定钙和镁量
    China National Standards
    Mag

    English PDF
    GB/T 6550-1986 Information processing -- 9-Track,127mm wide Magnetic tape for information interchange recorded at 63rpmm, phase encoded
    信息处理交换用9磁道12.7毫米宽63行/毫米调相制记录磁带
    China National Standards
    Mag

    English PDF
    GB/T 5874-1986 IMage produced by camera aperture type W on 16mm motion-picture film--Position and dimensions
    16mm W型电影摄影机片窗所形成的画面位置和尺寸
    China National Standards
    Mag

    English PDF

    Find out:1309Items   |  To Page of: First -Previous-Next -Last  | [7] [8] [9] [10] [11] [12] [13]

     

    +86-755-25831330        sales@gbstandards.org 
    106# Zhongmao Mansion,No.1 Beizhan Road,Shenzhen,China
    ©  RJS Copyright  2001-2025 All Rights Reserved

    - Since 2001 -
    Focus on China Standards & Compliance Services

    www.gbstandards.org

    China National Standards