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2. Lightweight Construction Compared to traditional roofing materials, such as tiles or concrete, trapezoidal sheet metal is considerably lighter. This characteristic reduces the load on a building's structure, making it easier to install without requiring extensive reinforcement. Consequently, this can lead to lower construction costs and faster project completion times.
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There are several types of impellers used in sewage pumps, each with distinct features catering to various types of sewage applications. The most common types include open, semi-open, and enclosed impellers. Open impellers have no front shroud, allowing for larger solids to pass through without clogging. This makes them ideal for handling raw sewage containing debris. Semi-open and enclosed impellers, on the other hand, are more suitable for cleaner liquids, offering better efficiency and pressure generation.
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