Книги автора Steffen Praetorius
Steffen Praetorius
личная эффективность, саморазвитие / личностный рост, мотивацияPipe jacking is a construction process for the no-dig laying of pipes. Successful pipe jacking demands low skin friction between the ground …
Pipe jacking is a construction process for the no-dig laying of pipes. Successful pipe jacking demands low skin friction between the ground …
