gb231.4
gb231.4, Total:1 items.
The international standard classification for "gb231.4" includes: Mechanical testing of metals .
The Chinese standard classification for "gb231.4" includes: Metal mechanical property test method .
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 231.4-2009 Metallic materials—Brinell hardness test—Part 4:Tables of hardness values
