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The 718mm polymer plastic steel sheet pile is a new eco-friendly support material specifically designed for river embankments, cofferdams, flood control, and riverbank protection projects. Manufactured from polymer composite materials, it offers high strength, impact resistance, and excellent waterproofing performance. Its interlocking joints provide tight sealing and exceptional overall stability. Featuring corrosion resistance, rust prevention, aging resistance, and extended service life, it can replace traditional steel sheet piles and concrete piles, significantly reducing construction and maintenance costs. Lightweight and quick to install, it is suitable for river management, embankment reinforcement, flood control and water retention, fish pond cofferdams, and foundation pit support projects. Directly supplied by the manufacturer with complete specifications, stable supply, and reliable quality, it is ideal for bulk procurement in various water conservancy and geotechnical support projects.