There are mainly cast iron, PVC, zin笑購c alloy, ceramics, cas請讀t aluminum, stainless st器飛eel, brass, copper alloy and other m媽拍aterials.

1. Engineering plastics: widely us鐘短ed in engineering, cheap and cheap.愛市

2. Cast iron: cheap, easy to rust, u雜遠nsightly, sticky dirt習小 after rusting, not easy to clean影雪;

3. PVC: It is cheap, easily deform音紙ed by temperature, has p好農oor scratch resistance and impact re有畫sistance, and is not beautiful;

4. Zinc alloy: cheap 師現and easy to corrode;很吃

5. Ceramics: cheap, corrosion-resista器呢nt, impact-resistant;

6. Cast aluminum: mid-ra空資nge price, light weight雨靜, rougher;

7. Stainless steel: mo綠吃derate price, beautiful and durabl紅知e;

8. Copper alloy: affo紅拿rdable and practical.

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