Cameroon, Central African Republic, Chad, Equatorial Guinea, Gabon, The Democratic Republic of Sao Tome and Principe, The Democratic Republic of the Congo, The Republic of Congo
Cameroon, Central African Republic, Chad, Equatorial Guinea, Gabon, The Democratic Republic of Sao Tome and Principe, The Democratic Republic of the Congo, The Republic of CongoPlain solid floor
Section width or diameter (mm) 146
Height of cross section (mm) 31