We offer various of ceramic discs, used in many kinds of faucets:
1.Material: 90%~95% alumina.
2.Size: As per customers' request

Features:
1.The frictional times is 300, 000 to 500, 000,

2.Density :3.65~3.7g/cubic centimeter,

3.Rigidity is 84~86 HRA,

4.The thickness tolerance is less than 0.02mm, the diameter tolerance is less than 0.02mm,

Meatime, we can manufacture according to customs' drawings or samples. 
We have great advantage in cost and technology on these parts because of our professional with more than 6 years manufacturering experience.