432 / | HD | HEATING |
77 | WITH WORK COOLING STRUCTURE {5} | |
78 | DF | .~> Combustion feed air cools exiting work by contact {2} |
81 | DF | .~> Work holder having selectively usable heating and cooling structure |
82 | DF | .~> Entering and leaving work exchange heat |
83 | DF | .~> Work heat removed through heat transmitting wall {1} |
85 | DF | .~> Cooling liquid contacts work |