Automobile wiper nozzles are usually made of the following common materials:

1. Plastic: Plastic is one of the most common materials of wiper nozzle, which has the advantages of light weight, corrosion resistance and low cost. Plastic water nozzles are usually injection molded, with smooth surface, easy installation and maintenance, and are suitable for most vehicles.

2. Metal: The metal wiper nozzle is usually made of stainless steel or aluminum alloy, which has high durability and corrosion resistance. The metal water nozzle has exquisite appearance and good texture, which is suitable for high-end models or vehicles with high appearance requirements.

3. Rubber: Rubber wiper nozzle is usually used for soft parts, such as the sealing ring or hose part of the nozzle. Rubber material has good sealing and wear resistance, which can effectively prevent water leakage and improve service life.

4. Glass fiber: Glass fiber wiper nozzle has high strength and wear resistance, and is suitable for occasions with high durability requirements. Glass fiber material is usually used for wiper nozzles in some special vehicles or special environments.

5. Alloy: Alloy wiper nozzles are usually made of various metal alloys, which have high strength and corrosion resistance and are suitable for vehicles with high requirements on durability and appearance.

To sum up, the materials of automobile wiper nozzle mainly include plastic, metal, rubber, glass fiber and alloy, etc. Different materials of wiper nozzle have their own characteristics and applicable occasions, and consumers can choose the appropriate material type of wiper nozzle according to vehicle model, demand and budget.