Changes belts to be partly made of rubber instead of entirely iron.
Mods introducing new content into the game.
Augmented or new ways of transporting materials - belts, inserters, pipes!
the early game is imposible because with the mods I'm using the lab requires rubber but to get rubber I need to use the lab the research things
Yep, they need to change the recipy for the lab, delete the rubber there or make some eary game way to get rubber.
