This standard applies to gray cast iron material brake discs used in original passenger cars. It stipulates the following contents: terms and definitions, material requirements, performance, mechanical performance stability, NVH, dimensional and geometric tolerances, internal and external defects , surface anti-corrosion, testing and evaluation methods, etc.
T/CAAMTB 09-2019 history
2019T/CAAMTB 09-2019 Passenger car brake disc product standards and test methods