Before revision: Common diameters of the auger head: diameter 36-56cm (14"-22") diameter 41-61cm (16"-24") diameter 46-66cm (18"- 26") diameter 51-71cm (20"-28") diameter 56-76cm (22"-30") Implementation Implementation method of the Olivier Pile.1.
After revision: Common diameters of the auger head: diameter 36-56cm (14"-22") diameter 41-61cm (16"-24") diameter 46-66cm (18"- 26") diameter 51-71cm (20"-28") diameter 56-76cm (22"-30") Installation Implementation method of the Olivier Pile.1.