Car watering cans are usually made of the following materials:

1. Plastic: Plastic is one of the common materials of automobile watering can, which has the characteristics of light weight, corrosion resistance and easy processing and molding. Plastic watering cans are usually made of engineering plastics or high-temperature resistant plastics, which can withstand the high temperature environment in the engine compartment of automobiles and have good durability and stability.

2. Glass fiber reinforced plastic: Glass fiber reinforced plastic is a kind of composite material with glass fiber reinforced material in plastic matrix, which has high strength and stiffness and is suitable for manufacturing parts such as automobile watering cans that need to bear certain mechanical load.

3. Stainless steel: Some high-end car watering cans are made of stainless steel, which has excellent corrosion resistance and high temperature resistance, and can maintain stability and durability in harsh environments.

4. Aluminum alloy: Aluminum alloy watering can has light weight, good thermal conductivity and corrosion resistance, and is suitable for some automobile models with high weight requirements.

5. Copper: A few car watering cans are made of copper, which has good thermal conductivity and corrosion resistance, but is relatively heavy.

Choosing the material of automobile watering can needs to be considered comprehensively according to the specific model, use environment and performance requirements. Different materials of watering can have different characteristics and application scope, so it is necessary to choose the watering can material that meets the requirements of vehicles and use, so as to ensure its stability, durability and performance. It is suggested that when replacing the watering can, the original accessories or products recognized by the brand should be selected to ensure stable quality and performance.