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Plastics piping systems for water supply and for buried and above-ground drainage and sewerage under pressure…

Overview ISO 1452-4:2009 defines requirements for PVC‑U (unplasticized polyvinyl chloride) valves used in plastics piping systems for water supply and for buried and above‑ground drainage and sewerag…

Photography. Electronic still-picture Cameras. Methods for measuring optoelectronic conversion functions (OEC…

Plastics piping systems for water supply and for buried and above-ground drainage and sewerage under pressure…