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Number of entries (Data is updated on a monthly basis): 46256
GB/T 19474.1-2004
缩微摄影技术 图形COM记录仪的质量控制 第1部分:测试画面的特征
Micrographics--Quality control of graphic COM recorders--Part 1:Characteristics of the test frames
GB/T 4019.2-1997
Box type vertical drilling machines--Testing of the accuracy--Part 2:Working tests
GB/T 12586-2003
Rubber or plastics-coated fabrics--Determination of resistance to damage by flexing
GB/T 16143-1995
Charcoal canister method for measuring 222Rn exhalation rate from building surface
Number of entries (Data is updated on a monthly basis): 46256