Research topics below this in the hierarchy
- Furs
- Production management. Operations management
- Packaging
- Metal manufactures. Metalworking
- Stonework
- Wood technology. Lumber
- Leather industries. Tanning
- Paper manufacture and trade
- Textile industries
- Rubber industry
- Animal products
- Cereals and grain. Milling industry
- Tobacco industry
- Animal feeds and feed mills. Pet food industry