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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 "Perfect" GB Standards English PDF List:
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    GB/T 40385-2021 Non-destructive testing of steel tubes—Digital radiographic testing of the weld seam of welded steel tubes for the detection of imPerfections
    钢管无损检测 焊接钢管焊缝缺欠的数字射线检测
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    GB/T 40791-2021 Non-destructive testing of steel tubes—Radiographic testing of the weld seam of welded steel tubes for the detection of imPerfections
    钢管无损检测 焊接钢管焊缝缺欠的射线检测
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    GB/T 5777-2019 Automated full peripheral ultrasonic testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of longitudinal and/or transverse imPerfections
    无缝和焊接(埋弧焊除外)钢管纵向和/或横向缺欠的全圆周自动超声检测
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    GB/T 5777-2019 Automated full peripheral ultrasonic testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of longitudinal and/or transverse imPerfections
    无缝和焊接(埋弧焊除外)钢管纵向和/或横向缺欠的全圆周自动超声检测
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    GB/T 14142-2017 Test method for crystallographic Perfection of epitaxial layers in silicon—Etching technique
    硅外延层晶体完整性检验方法 腐蚀法
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    GB/T 7735-2016 Automated eddy current testing of seamless and welded (except submerged arc-welded) steel tubes for detection of imPerfections
    无缝和焊接(埋弧焊除外)钢管缺欠的自动涡流检测
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    GB/T 33219-2016 ImPerfections in brazed joints
    硬钎焊接头缺欠
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    GB/T 33214-2016 Laser-arc hybrid welding joints of steels, nickel and nickel alloys—Quality levels for imPerfections
    钢、镍及镍合金的激光-电弧复合焊接接头 缺欠质量分级指南
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    GB/T 12606-2016 Automated full peripheral flux leakage testing of seamless and welded (except submerged arc-welded) ferromagnetic steel tubes for the detection of longitudinal and/or transverse imPerfections
    无缝和焊接(埋弧焊除外)铁磁性钢管纵向和/或横向缺欠的全圆周自动漏磁检测
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    GB/T 12606-2016 Automated full peripheral flux leakage testing of seamless and welded (except submerged arc-welded) ferromagnetic steel tubes for the detection of longitudinal and/or transverse imPerfections
    无缝和焊接(埋弧焊除外)铁磁性钢管纵向和/或横向缺欠的全圆周自动漏磁检测
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    GB/T 7735-2016 Automated eddy current testing of seamless and welded (except submerged arc-welded) steel tubes for detection of imPerfections
    无缝和焊接(埋弧焊除外)钢管缺欠的自动涡流检测
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    GB/T 13871.5-2015 Rotary shaft lip-type seals incorporating elastomeric sealing elements—Part 5: Identification of visual imPerfections
    密封元件为弹性体材料的旋转轴唇形密封圈 第5部分: 外观缺陷的识别
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    GB/T 29033-2012 Calculation method of water-water heat pump units on the basis of thermodynamic Perfectibility
    水-水热泵机组热力学完善度的计算方法
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    GB/T 25681-2010 Printing machinery - Perfect binding machine
    印刷机械 胶粘装订联动机
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    GB/T 1554-2009 Testing method for crystallographic Perfection of silicon by preferential etch techniques
    硅晶体完整性化学择优腐蚀检验方法
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    GB/T 8923.3-2009 Preparation of steel substrates before application of paints and related products - Visual assessment of surface cleanliness - Part 3: Preparation grades of welds,edges and other areas with surface imPerfections
    涂覆涂料前钢材表面处理 表面清洁度的目视评定 第3部分:焊缝、边缘和其他区域的表面缺陷的处理等级
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    GB/T 7736-2008 Ultrasonic inspecting method for macro-structure and imPerfection of steel
    钢的低倍缺陷超声波检验法
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    GB/T 22087-2008 Arc-welded joints in aluminium and its alloys - Guidance on quality levels for imPerfection
    铝及铝合金的弧焊接头 缺欠质量分级指南
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    GB/T 22085.2-2008 Electron and laser beam welded joints - Guidance on quality levels for imPerfections - Part 2:Aluminium and its weldable alloys
    电子束及激光焊接接头 缺欠质量分级指南 第2部分:铝及铝合金
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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
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    GB/T 1185-2006 Surface imPerfections of optical elements
    光学零件表面疵病
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    GB/T 20490-2006 Seamless and welded (except submerged arc-welded) steel tubes for pressure purposes - Ultrasonic testing for the detection of laminar imPerfections
    承压无缝和焊接(埋弧焊除外)钢管分层的超声检测
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    GB/T 6417.2-2005 Classification and explanation of imPerfections in pressure welded joints
    金属压力焊接头缺欠分类及说明
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    GB/T 6417.1-2005 Classification and explanation of imPerfections in fusion welded joints
    金属熔化焊接头缺欠分类及说明
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    GB/T 19418-2003 Arc-welded joints in steel--Guidance on quality levels for imPerfections
    钢的弧焊接头 缺陷质量分级指南
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    GB/T 15757-2002 Geometrical product specifications(GPS)--Surface imPerfections--Terms,definitions and parameters
    产品几何量技术规范(GPS) 表面缺陷 术语、定义及参数
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    GB/T 17604-1998 Rubber--Recommendations for the workmanship of pipe joint rings--Description and classification of imPerfections
    橡胶 管道接口用密封圈制造质量的建议 疵点分类与类别
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    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
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