IEC: 60079-18-1992-10: Electrical apparatus for explosive gas atmospheres part 18: Encapsulation 'm'
IEC
IEC: 60079-18-1992-10: Electrical apparatus for explosive gas atmospheres part 18: Encapsulation 'm' - 1 - Geneva IEC 1992 - 49
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IEC: 60079-18-1992-10: Electrical apparatus for explosive gas atmospheres part 18: Encapsulation 'm' - 1 - Geneva IEC 1992 - 49
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