ceramic seal rings and rings for auto parts

We offer various specs of ceramic seal discs & rings,which can be used in water conditioner, auto parts, faucets, pumps, and so on.
Material: 95%--99% alumina
Size: According to customers' request
price:various according defferent materials and sizes
The frictional times are 300, 000 to 500, 000, the density is3. 6~3. 7g/cubic centimeter, the rigidity is 84~86 HRA, the thickness tolerance is less than 0. 02mm, the diameter tolerance is less than 0. 02mm, meanwhile, we can manufacture according to customers' drawings or samples,and We have both cheaper price and higher quality.
Looking forward to cooperation with you.