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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 29711-2023 |
Non-destructive testing of welds Ultrasonic testing Characteristics of internal Discontinuities in welds 焊缝无损检测 超声检测 焊缝内部不连续的特征 |
China National Standards Discontinuities |
 English PDF |
| GB/T 23902-2021 |
Non-destructive testing - Ultrasonic testing - Time-of-flight diffraction technique as a method for detection and sizing of Discontinuities 无损检测 超声检测 超声衍射声时技术检测和评价方法 |
China National Standards Discontinuities |
English PDF |
| GB/T 39239-2020 |
Non-destructive testing—Ultrasonic testing—Characterization and sizing of Discontinuities 无损检测 超声检测 不连续的特征和定量 |
China National Standards Discontinuities |
English PDF |
| GB/T 39238-2020 |
Non-destructive testing—Ultrasonic testing—Examination for Discontinuities perpendicular to the surface 无损检测 超声检测 垂直于表面的不连续的检测 |
China National Standards Discontinuities |
English PDF |
| GB/Z 32075-2015 |
Non-destructive testing—Discontinuities in specimens for use in qualification examinations 无损检测 资格鉴定考试用试样中的不连续 |
China National Standards Discontinuities |
English PDF |
| GB/T 23902-2009 |
Non-destructive testing - Ultrasonic examination - Time-of-flight diffraction technique as a method for detection and sizing of Discontinuities 无损检测 超声检测 超声衍射声时技术检测和评价方法 |
China National Standards Discontinuities |
English PDF |
| GB/T 5779.3-2000 |
Fasteners--Surface Discontinuities--Bolts，screws and studs for special requirements 紧固件表面缺陷 螺栓、螺钉和螺柱 特殊要求 |
China National Standards Discontinuities |
English PDF |
| GB/T 5779.2-2000 |
Fasteners--Surface Discontinuities--Nuts 紧固件表面缺陷 螺母 |
China National Standards Discontinuities |
English PDF |
| GB/T 5779.1-2000 |
Fasteners--Surface Discontinuities--Bolts，screws and studs for general requirements 紧固件表面缺陷 螺栓、螺钉和螺柱 一般要求 |
China National Standards Discontinuities |
English PDF |
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