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Chinese National Standard Category: Physical Standard Substance

English Title: Standardized blocks of Rockwell hardness
Chinese Title: 标准洛氏硬度块
Standard No.: GB/T 2850-1992
Category No.: A67
Issued by:
Issued on: 1992-08-29
Implemented on: 1993-4-1
Status: valid
Superseded by:GB/T 230.3-2002 Metallic Rockwell hardness tes - Part 3: Calibration of hardness reference blocks (scales A, B, C, D, E, F, G, H, K, N, T)
Superseded on:
Abolished on:
Superseding:GB 2850-1981
Word Count:2500 words
Similar Standards: DB23/T 3615-2023   JJ 1005-1986   GB/T 2850-1992   GB 13270-1991   GB/T 13268-1991   GB/T 13269-1991  
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