
BS EN ISO 1452-3. Plastics piping systems for water supply and for buried and above-ground drainage and sewerage under pressure. Unplasticized poly(vinyl chloride) (PVC-U). Part 3. Fittings
出版:British Standards Institution

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BS EN ISO 1452-3. Plastics piping systems for water supply and for buried and above-ground drainage and sewerage under pressure. Unplasticized poly(vinyl chloride) (PVC-U). Part 3. Fittings
出版:British Standards Institution
专家解读视频