recision Sewerage Waste Rainwater (SWR) Pipes & Fittings are manufactured from a specially Formulated unplasticised polyvinyl chloride compound. These pipes & fittings are tough and durable with high tensile and impact strength and are manufactured in accordance to IS: 13592 – 1992 & fittings to IS: 14735 – 1999. Rubber rings confirm to IS:5382.