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 55
16.11

Gas welding and cutting torch ⚠

acetylene burnt in pure oxygen: a flame that welds thin plate and cuts thick steel

MakingYear 55Stands on 303 earlier

AWhat it needs

Needs 303 other products in all, 6 of them directly.

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