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Industrial automation systems and integration. Product data representation and exchange. Part 439. Application module. AP239 product life cycle support
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State system for ensuring the uniformity of measurements. Measuring instruments of heat energy hot-water heating systems. Metrological assurance. Main principles
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Prosthetics. Testing of ankle-foot devices and foot units. Requirements and test methods
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Equipment and surfacing for playgrounds. Additional safety requirements and test methods for multilevel labyrinths
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Basic norms of interchangeability. Butters thread. Tolerances
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