3917.39.00.10 - Reinforced with metal

This HTS category, 3917.39.00.10, specifically designates tubes, pipes, and hoses of plastics that are reinforced with metal. This reinforcement typically involves the incorporation of metal wires, mesh, or strips within the plastic structure to enhance the product's strength, rigidity, pressure resistance, or kink resistance. Examples include reinforced garden hoses, industrial flexible conduits, or specific types of medical tubing where a metal element is integral to its design and function.

This subcategory is distinguished from other "Other" categories within the broader heading 3917 by the explicit requirement of metal reinforcement. For instance, it would not encompass unreinforced plastic hoses or pipes, nor would it include fittings such as joints, elbows, or flanges, which fall under different subheadings. The defining characteristic here is the material composition and construction, specifically the presence of metal integrated into the plastic tube, pipe, or hose.

As this is a leaf node within the HTS, there are no further subcategories. Therefore, classification into 3917.39.00.10 hinges entirely on the presence of metal reinforcement in otherwise qualifying plastic tubes, pipes, or hoses. Importers and exporters should ensure that the product's physical characteristics and manufacturing process clearly indicate this metallic reinforcement.