- 08.11 — Extraction of stone, limestone, gypsum, chalk and shale
- 20.11 — Manufacture of industrial gases
- 23.52 — Manufacture of lime and plaster mixes
- 42.99 — Other construction, n.v.d.g.
- 45.20 — Maintenance and repair of motor vehicles
- 77.39 — Leasing of other machinery, equipment and goods, n.v.d.g.
- 46.90 — Non-specialized wholesale trade
Production of Lime Blast products for steel and glass production: calcium carbide to produce acetylene; technical gaseous oxygen for welding and cutting metals.