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Arc welding equipment. Part 4. Periodic inspection and testing
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Photovoltaic modules. Evaluation of compliance with technical requirements. Part 1.3. Special requirements for testing of thin-film amorphous silicon based photovoltaic modules
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Steel. Methods tensile tests of rolled thick-plates in the thickness direction
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Industrial automation systems and integration. Product data representation and exchange. Part 1111. Application module. Classification with attributes
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