... of faucets. Material: 95%~96% alumina. Size: According to customers' request Price: According to different sizes, materials The frictional times is 300 ... , 000 to 500, 000, the density is3.6~3.7g/cubic centimeter, the rigidity is 84 ... is less than 0.02mm, meanwhile, we can manufacture according to customs' drawings or samples. 1/2#, 3/4# ceramic disc