... .5 m Standard widths: 1.2 m, 1.5 m, 1.8 m, 2.1 m, 2.4 m, 2.7 m, 3.0 ... air convection - very fast heat exchanges Direct Heating (electricity or gas) Direct Cooling - injection of ambient air, mixed with circulated air ... Insulated entrance hood Loading system Feeding conveyor Belt brushing system Natural Gas Heating Annealing Wire Net Trasmission Belt Lehr