| Air Controls & Compressors Ltd - Unit 9 Trafalgar Court Waterloo Ind Est - WA8 0SZ |
| Airman Engineering Services Ltd - 10 Boleyn Ct - WA7 1SR |
| Associated Compressor Engineers - Sheffield Street - SK4 1RU |
| Excel Compressor Engineering - Rhodes Street - SK14 2DS |
| MET Technology Ltd |
| MET Technology Ltd - 211, Windlehurst Road - SK6 8AG |
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