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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 39741.2-2021 |
Plain bearings—Tolerances—Part 2：Tolerances on geometrical characteristics and Surface roughness for shafts and thrust collars 滑动轴承 公差 第2部分：轴和止推轴肩的几何公差及表面粗糙度 |
China National Standards Surface roughness fo |
 English PDF |
| GB/T 14234-1993 |
Surface roughness for plastic parts 塑料件表面粗糙度 |
China National Standards Surface roughness fo |
English PDF |
| GB/T 13841-1992 |
Surface roughness for electronic ceramic parts 电子陶瓷件表面粗糙度 |
China National Standards Surface roughness fo |
English PDF |
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