DIN EN IEC 61158-3-12 : 2020 Title: Industrial communication networks - Fieldbus specifications - Part 3-12: Data-link layer service definition - Type 12 elements (IEC 61158-3-12:2019); English version EN IEC 61158-3-12:2019, only on CD-ROM Year: 2020 Publisher: DIN Media GmbH Availability: Within 1-2 working days