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 China 'GB/T 230.2-2012 ' standard english version:

　

NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA

GB/T 230.2-2012

Metallic materials - Rockwell hardness test - Part 2: Verification and calibration of testing machines(scales A,B,C,D,E,F,G,H,K,N,T)
金属材料 洛氏硬度试验 第2部分：硬度计（A、B、C、D、E、F、G、H、K、N、T标尺）的检验与校准
Issued Date:2012-12-31 　 Implemented Date:2013-06-01
Issued by: 　 The Standardization Administration of the People's Republic of China
　

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GB Standard Code GB/T 230.2-2012
Standard Category China National Standards
GB Standard English Title Metallic materials - Rockwell hardness test - Part 2: Verification and calibration of testing machines(scales A,B,C,D,E,F,G,H,K,N,T)
GB Standard Chinese Title 金属材料 洛氏硬度试验 第2部分：硬度计（A、B、C、D、E、F、G、H、K、N、T标尺）的检验与校准
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