Plastic coated hose is a type of pipe used to carry liquids, typically used in irrigation, drainage and general industrial applications. They are usually made of plastic materials such as polyethylene (PE) or polyvinyl chloride (PVC) and have the following characteristics:

1. Plastic-coated outer layer: Plastic-coated hoses usually consist of a plastic pipe interior covered with a plastic outer layer to provide additional protection. This outer layer is usually PVC or PE, which improves the hose's abrasion resistance, chemical resistance and resistance to sunlight and ultraviolet radiation.

2. Flexibility: Plastic-coated hoses are usually very flexible, easy to bend and lay, and are suitable for pipeline layouts of different shapes and terrains.

3. Anti-leakage: Due to the sealing properties of the outer plastic layer, plastic-coated hoses usually have high anti-leakage performance, ensuring the effectiveness of transporting liquids.

4. Durability: These hoses generally have good durability and can withstand a certain amount of physical damage and environmental impacts.

5. Multi-purpose: Plastic coated hose can be used in a variety of applications including irrigation systems, agriculture, construction site drainage, industrial applications, etc.

Selecting the appropriate plastic-coated hose depends on the specific application needs, including the type of fluid being transported, pressure requirements, piping layout and environmental factors. Additionally, installation and maintenance are important to ensure the long-term reliability of the hose.