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The sulphur trioxide formed is first made to react with concentrated sulphuric acid. Sulphur trioxide cannot be dissolved in water directly as it leads to the formation of fog. The product obtained after this reaction is known as oleum. The oleum obtained is then dissolved in water to obtain concentrated sulphuric acid.

- Consider Total Cost of Ownership While upfront costs are important, also consider long-term factors such as durability and maintenance. A higher initial investment in a quality product may lead to savings over time due to lower replacement and maintenance costs.

1. Material Composition FRP pipes are made from a combination of fibers (typically glass or carbon) and resin. The type of fibers and the quality of resin used can significantly influence the overall cost. Higher-grade materials tend to be more expensive but offer enhanced performance and longevity.