Civilization manualBook 1: From Bare Hands to Steam and Electricity765 entries · 23 phases · 100 years
The Island
Phase 19 — Roads, bridges, flyovers and tall buildings  /  About year 56
19.05

Concrete mixer

a turning drum mixes every batch alike

MakingYear 56Stands on 255 earlier

AWhat it needs

Needs 255 other products in all, 2 of them directly.

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