Research Lab I~IV

Research Lab and equipment from beginning to end game.

The factory are all compounded, so only ores and raw materials to feed in. When resource not enough, just pause whole system to save worker and maintain. Steam (low) recycling depends.

Designed from end to beginning, so you can replace next to previous one with little adjustment. Run smoothly in sandbox mode.

Available (and suggested) to mega trucks.

Meet what tech you will have at that stage. For Research Lab I~III, here have two production method, method A is for new arrived and B is for done some key research. To IV, you just upgrade if you have that research.