
Industrial Valves - Isolating Valves For Low-Temperature Applications - Part 1: Design, Manufacturing And Production Testing (Iso 28921-1:2013)
出版:British Standards Institution

专家解读视频
2017 [31/03/2017]
Supersedes 11/30246933 DC. Together with BS EN ISO 28921-2, it supersedes BS EN 12567. Renumbers and supersedes BS ISO 28921-1. 2017 Version incorporates corrigendum to BS ISO 28921-1. (03/2017)
ISO 28921-1:2013(R018) - Identical
EN ISO 28921-1 : 2017 - Identical
EN ISO 28921-1:2017 - Identical