METHOD FOR ROCKWELL HARDNESS TEST - VERIFICATION OF THE TESTING MACHINE
出版:British Standards Institution
专家解读视频
Deals with direct and indirect checks,normal regular inspection, and how to graduate the standard hardness employed for indirect checking.
BS 891(1940) : LATEST
BS 891(1989) : 1989
EN 117 : 2012 - Similar to
EN 122 : 1991 - Similar to
ISO 716 : 1986 - Similar to
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