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Heating boilers Part 1: Heating boilers with forced draught burners Terminology, general requirements, testing and marking. Original standard UNE-EN 303-1-2018 in PDF full version. Additional info + preview on request

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Heating boilers Part 2: Heating boilers with forced draught burners Special requirements for boilers with atomizing oil burners. Original standard UNE-EN 303-2-2018 in PDF full version. Additional info + preview on request

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Heating boilers. Test code for heating boilers for atomizing oil burners. Original standard UNE-EN 304-2018 in PDF full version. Additional info + preview on request

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Aerospace series. Titanium alloy TI-P64001. Solution treated and aged. Forgings. De <= 75 mm. Original standard UNE-EN 3315-2018 in PDF full version. Additional info + preview on request

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Aerospace series. Cables, electrical, aircraft use. Test methods - Resistance to fluids. Original standard UNE-EN 3475-411-2018 in PDF full version. Additional info + preview on request

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Aerospace series. Connectors, electrical, circular, bayonet coupling, operating temperature 175 °C or 200 °C continuous. Receptacle, square flange mounting. Product standard. Original standard UNE-EN 3646-003-2018 in PDF full version. Additional info + preview on request

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