Technical rule [WITHDRAWN]
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This document replaces DVS 1173 Beiblatt 1:1987-01 .
This document has been replaced by: DVS-EWF 1173 Beiblatt 1:1995-10 , DVS-EWF 1173 Beiblatt 1:1997-02 , DVS-IIW/EWF 1173 Beiblatt 1:2004-08 .