Civilization manualBook 1: From Bare Hands to Steam and Electricity765 entries · 23 phases · 100 years
The Island
Phase 16 — The builder's tools: spanners, pneumatic hammer and construction crane  /  About year 51
16.01

Rolled steel girders and angles

the long beams and corner bars that every frame, crane and bridge is built from

MakingYear 51Stands on 221 earlier

AWhat it needs

Needs 221 other products in all, 3 of them directly.

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