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Steel tubes. Preparation of ends of tubes and fittings for welding. General technical requirements
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Seamless and welded steel tubes. Part 5. Magnetic particle inspection of ferromagnetic tubes for the detection of surface imperfections
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Industrial automation systems and integration. Parts library. Part 32. Implementation resources. OntoML. Product ontology markup language
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Electricity metering equipment (a.c). Particular requirements. Part 23. Static meters for reactive energy
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