Civilization manualBook 1: From Bare Hands to Steam and Electricity765 entries · 23 phases · 100 years
The Island
Phase 12 — Precision and machine tools  /  About year 31
12.07

Bolts, nuts and machine screws

things can be taken apart and put back

MakingYear 31Stands on 163 earlier

AWhat it needs

Needs 163 other products in all, 2 of them directly.

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