
High-strength structural bolting assemblies for preloading Part 9: System HR or HV - Direct tension indicators for bolt and nut assemblies
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專(zhuān)家解讀視頻
Applies in conjunction with DIN EN 14399-1 issue 06-2006. (07/2009) DRAFT 2016 issued in January 2016. (01/2016)
EN 14399-9:2018 - Identical