Looking to purchase composite railway sleepers

Buy offer Details

Hello, please send me an offer for the supply of composite railway sleepers of dimensions 180mmx120mmx1200mm.
In Postojna Cave, due to environmental protection, it is planned to replace approximately 6000 wooden railway sleepers dimensions of 180mmx120mmx1200mm with composite ones. The cave railway is approx. 3000m long, with a track width of 620mm, the rails are type S18, the sleepers are 60cm apart.
In the first phase, the replacement of 500 wooden railway sleepers (test field) is planned. In the following years, all the wooden railway sleepers (6000 wooden railway sleepers ) would be replaced.
In the attachment, I am sending you a plan for the railway sleepers, a plan for the existing baseplates.
Please send us an offer for the supply of composite railway sleepers, dimensions 180mmx120mmx1200mm, including transport to Postojna (Slovenia), your solution (suggestion) for fastening and composite railway sleepers plan.