| 摘要 |
Cab roof of a driver's cab of a tractor or of a self-propelled harvesting machine consisting in the form of a hollow profiled part with a double wall suitable for receiving devices for introducing hot air and/or cold air inside the cab and comprising, arranged on the front, openings for the passage of the air, suitable for being closed by filters, characterised in that the air filters are constituted in the form of replaceable and recyclable sacks 13 which are known per se. <IMAGE>
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