| Environmental protection | |
 | Vapour condensation (2) |
| | Thermal insulation (2) |
| | Plant and machinery for recycling/processing by-products (5) |
| | Waste treatment (60) |
| | Noise reduction (4) |
Suppliers
| Environmental protection | |
| | Vapour condensation (2) |
| | Thermal insulation (2) |
| | Plant and machinery for recycling/processing by-products (5) |
| | Waste treatment (60) |
| | Noise reduction (4) |
companies
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