
Metals - Knoop hardness measurement - Part 3: Calibration of reference standards
出版:Polish Committee for Standardization

專家解讀視頻
EN ISO 4545-3 : 2018 - Identical
ISO 4545-3 : 2017 - Identical
EN ISO 4545-3 : 2018 - Identical
ISO 4545-3 : 2017 - Identical