John Tomczyk
John Tomczyk has written at least 2 books. Their most popular book is Troubleshooting and Servicing Modern Air Conditioning and Refrigeration Systems with 1 save with an average rating of -⭐.
 Troubleshooting and Servicing Modern Air Conditioning and Refrigeration Systems Troubleshooting and Servicing Modern Air Conditioning and Refrigeration Systems
| 0 | 0 reads | |
 Alternative Refrigerant Blends & Oils
| 0 | 0 reads |