Het hoofdstuk Gasinstallaties betreft het geheel van leveranties en werkzaamheden, nodig voor het in het werk brengen en bedrijfsgereed maken van toevoerleidingen en voorraadhouders voor gassen, met uitzondering van perslucht.
| Naam | Specialisatie | Plaats |
|---|---|---|
| TECHNISCHE INSTALLATIE- LAS- EN CONSTRUCTIEWERKEN ( TILCON ) | 55.11 55.12 55.41 55.42 44.11 44.30 44.50 55.31 55.32 55.33 55.34 27.00 44.21 44.22 27.10 27.20 27.30 27.40 27.50 27.60 27.70 27.80 25.00 25.31 25.32 25.32.a 25.32.b 25.33 25.82 25.83 31.33.a 31.33 31.50 31.70 31.40 31.a 32.00 32.31b 32.32 32.37 32.41 32.42 32.43 32.51 32.52.a 32.52.b 32.52.c 32.52.d 32.57 43.00 43.32 43.33 43.34 43.38 43.41 43.42 43.a 43.b 44.33 44.34 44.35 50.41 50.60 52.31 54.31 55.31 56.31 60.31 60.34 62.31 82 82.00 2 T2.23 4 T4.45 5 T5 .57 55.22 44.20 65.10 44.23 42.00 42.12 54.64 55.30 55.24 | Diksmuide |
| Technische Unie | 52.00 53.00 55.00 60.00 70.00 75.00 | Rotterdam |
| Technische Unie | 52.00 53.00 55.00 60.00 70.00 75.00 | Emmen |
| Technische Unie | 52.00 53.00 55.00 60.00 70.00 75.00 | Groningen |
| Technische Unie | 70.00 70.00 52.00 53.00 55.00 60.00 75.00 | Venlo |
| Technische Unie | 70.00 70.00 52.00 53.00 55.00 60.00 75.00 | Breda |
| Technische Unie | 70.00 70.00 52.00 53.00 55.00 60.00 75.00 70.81 70.82 | Amsterdam |
| Technische Unie | 70.00 70.00 52.00 53.00 55.00 60.00 75.00 | Gouda |
| Technische Unie | 70.00 70.00 52.00 53.00 55.00 60.00 75.00 | Den Haag |
| Technische Unie | 70.00 70.00 52.00 53.00 55.00 60.00 75.00 | Utrecht |
| Technische Unie | 70.00 70.00 52.00 53.00 55.00 60.00 75.00 | Haarlem |
| Technische Unie | 70.00 70.00 52.00 53.00 55.00 60.00 75.00 | Nijmegen |
| Technische Unie | 70.00 70.00 52.00 53.00 55.00 60.00 75.00 | Arnhem |
| Technische Unie | 70.00 70.00 52.00 53.00 55.00 60.00 75.00 | Leeuwarden |
| Technische Unie | 70.00 70.00 52.00 53.00 55.00 60.00 75.00 | Alphen aan den Rijn |
| Technische Unie | 70.00 70.00 52.00 53.00 55.00 60.00 75.00 | Nijkerk |
| Technische Unie | 70.00 70.00 52.00 53.00 55.00 60.00 75.00 | Helmond |
| Technische Unie | 70.00 70.00 52.00 53.00 55.00 60.00 75.00 | Zaandam |
| Technische Unie | 70.00 70.00 52.00 53.00 55.00 60.00 75.00 | Ede |
| Technische Unie | 70.00 52.00 53.00 55.00 60.00 75.00 | Amersfoort |
| Technische Unie | 70.00 70.00 52.00 53.00 55.00 60.00 75.00 | Zwolle |
| Technische Unie | 70.00 70.00 52.00 53.00 55.00 60.00 75.00 | Hilversum |
| Technische Unie | 70.00 70.00 52.00 53.00 55.00 60.00 75.00 | Middelburg |
| Technische Unie | 70.00 70.00 52.00 53.00 55.00 60.00 75.00 | Oud Gastel |
| Technische Unie | 70.00 70.00 52.00 53.00 55.00 60.00 75.00 | Alkmaar |