There are mainly cast iron, PVC, zinc alloy, ceramics, cast aluminum, stainless steel, brass, copper alloy and other materials.

1. Engineering plastics: widely used in engineering, cheap and cheap.

2. Cast iron: cheap, easy to rust, unsightly, sticky dirt after rusting, not easy to clean;

3. PVC: It is cheap, easily deformed by temperature, has poor scratch resistance and impact resistance, and is not beautiful;

4. Zinc alloy: cheap and easy to corrode;

5. Ceramics: cheap, corrosion-resistant, impact-resistant;

6. Cast aluminum: mid-range price, light weight, rougher;

7. Stainless steel: moderate price, beautiful and durable;

8. Copper alloy: affordable and practical.

9. Brass: heavy quality, high-grade, high price, the surface can be electroplated.