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Steffen Praetorius的作品

Cover for Steffen Praetorius · Bentonite Handbook: Lubrication for Pipe Jacking (Paperback Book) (2017)

Bentonite Handbook: Lubrication ... (2017)

Steffen Praetorius

Cover for Steffen Praetorius · Bentonithandbuch: Ringspaltschmierung fur den Rohrvortrieb - Bauingenieur-Praxis (Paperback Book) (2015)

Bentonithandbuch: Ringspaltschmi... (2015)

Steffen Praetorius