longkang separuh bulat, half round drain

A "glazed half-round drain" typically refers to a specific type of drainage system with a semi-circular cross-section and a glazed or smooth finish. This type of drain is commonly used in various applications, including residential, commercial, and industrial settings.

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A "half-round U drain" likely refers to a drainage system with a semi-circular or half-circle cross-section in the shape of a "U.

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