BS EN 1905-1999 Plastics piping systems Unplasticized poly(vinyl chloride) (PVC-U) pipes, fittings a
标准简介
BS EN 1905-1999 Plastics piping systems Unplasticized poly(vinyl chloride) (PVC-U) pipes, fittings and material Method for assessment of the PVC content based on total chlorine content
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