... or airMinimum Order40 tubesPayment TermsT/T,L/C,Western UnionSuitable elastic ratioThe elastic ratio of ceramics is higher than that ... dynamic stiffness, however, the elastic ratio should not be too high, otherwise, excessive elastic ratio will create stress concentration to ... bearings can keep their mechanical stability up to 800°C. Corrosion resistanceIn the conditions of oxidation and corrosion, ...