Prefabricated concret manholes, unreinforced, steel fiber and reinforced - Part 101: Evaluation of conformity for drains and sewers in addition to DIN EN 1917:2003-04
Prefabricated concrete manholes, unreinforced, steel fibre and reinforced - Part 101: Evaluation of conformity for drains and sewers in addition to DIN EN 1917:2003-04— 8 стр.