DIN EN ISO 15614-1-2017 实施日期:2017-12-01 英文名:Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 1:Arc and gas welding of ste
DIN EN 13845-2017 实施日期:2017-12-01 英文名:Resilient floor coverings - Polyvinyl chloride floor coverings with particle based enhanced slip resistance - Specification;German version EN 1
DIN EN 301428-2017 实施日期:2017-12-01 英文名:Satellite Earth Stations and Systems (SES) - Harmonised Standard for Very Small Aperture Terminal (VSAT) - Transmit-only,transmit/receive or re