OVE
* OVE | For heat-assistance of plants in dangerous in respect of explosion area of whole classes with environments of ÏÀÒÇ.
| PET
* PET | For heat-assistance of electric train (PET-1), service and plants (ÏÝÒ-2, ÏÝÒ-3), for heat-assistance of household and office premises (ÏÝÒ-4), possibly also tropical version.
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