Pipes, fittings, channels and plates in stoneware - Test regulations and test procedures
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Vitrified clay for sewerage; special fittings and adapters with flexible mechanical joint and compatible accessories; dimensions
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Small domestic sewage treatment works
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Pipes, fittings, channels and plates in stoneware - Dimensions and quality regulations
Cable cross-sections of hydraulic engineering
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Concrete pipes DIN 4032 - Guidelines for the design of concrete pipes
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