A picture of the new step-by-step process of building construction called "flow 640", which ensures optimal continuity of the individual professional parts of building construction.
Director:
Dec 31, 1950
Jan 1, 1949
May 6, 2015
Dec 20, 2023
Dec 31, 2019
Jan 1, 1952
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Jun 24, 1997
Apr 13, 2010
Feb 28, 1926
Aug 21, 2015
Feb 4, 1977
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Jun 19, 2020