heavy industry 
noun [mass noun]
The manufacture of large, heavy articles and materials in bulk: the plan allows for a rise in carbon dioxide emissions from heavy industry [count noun]: new communities grew up around the heavy industries of coal, steel, and shipping...
- In line with Soviet precedent, priority in investment was given to heavy industry, followed by light industries, with agriculture last.
- But for heavy industry, the ability to finally pass on higher materials costs has been a boon.
- North Korea inherited the bulk of heavy industry when the country was partitioned in 1945.
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