Rounded precast concrete elements for lining a tunnel floor in a tunnel construction project. Lining segments are positioned using a vacuum system and serve as a route for the tunnel boring machine trailing units and for laying rails in railway tunnels at a later point.
This building kit contains: 24 single parts in 1 colour.Use for handicrafts FALLER EXPERT plastic glue.
35 x 15 x 5 mm (24 x)