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Injection molding type lower water seepage special-shaped plate
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Reinforced split type drainage channel
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Reinforced drainage channel
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Ventilating type drainage structure
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Composite high-molecular special-shaped sheet
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Integrated system is prevented arranging by garage roof
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Internal corner structure of drainage system
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Prevent arranging integration underground drainage system
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Prevent arranging integration drainage structures
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Multifunctional siphon drainage channel
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Siphon drainage system
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