/https://fbi.cults3d.com/uploaders/13073305/illustration-file/c3d5ae9e-b1f3-43a9-b38a-67194692d866/20171020_125944.jpg)
About this 3D model
Same type as the already published dual-track tunnel, here is the 1-track version with left and right supports also compatible for the 2-track tunnel
Same type as the already published dual-track tunnel, here is the 1-track version with left and right supports also compatible for the 2-track tunnel