標題: ISO 4545-2-2005 Metallic materials-Knoop hardness test [打印本頁] 作者: chenoffice 時間: 2009-6-13 10:07 標題: ISO 4545-2-2005 Metallic materials-Knoop hardness test Metallic materials-Knoop hardness test-
Part 2:
Verification and calibration of testing machines