{"id":86936,"date":"2021-06-21T10:35:25","date_gmt":"2021-06-21T14:35:25","guid":{"rendered":"https:\/\/formationconstruction.com\/uncategorized\/air-circulation-duct-duct-heating-system\/"},"modified":"2022-11-18T14:45:19","modified_gmt":"2022-11-18T18:45:19","slug":"air-circulation-duct-duct-heating-system","status":"publish","type":"post","link":"https:\/\/formationconstruction.com\/en\/rbq-licenses\/sectors\/air-circulation-duct-duct-heating-system\/","title":{"rendered":"Air circulation duct (duct) – heating system"},"content":{"rendered":"\t\t