Industry

Cast Iron

Composition, History, & Facts

Cyanine Dye

chemical compound

Ice Core

geology

Investment Casting

American System

industry

Fusain

coal

Armoury Practice

production system

Quern

tool

Congo Red

dyestuff

Dry Cleaning

Crucible Process

metallurgy

Acheson, Edward Goodrich

American inventor

Hydraulic Mining

Gunmetal

metallurgy

Nut

fastener

Lamination

technology