Danaher Brand of high quality brake disc rotors & drums measure up to the quality standard of SAE J431-G3000, manufacture is operated under strict quality control system of ISO9002 &QS9000 & VDA6. 1, 100% inspection for material and structure and dimension and dynamic balance and trace.

Mechanical property:
Tensile strength: §b¡Ý201Mpa.
Hardness: HB187 - 241
Statement of graphite: 90% of the graphite is Lamella, the remainder are no more than 10%.
The lamella graphite mostly is type "A"
Length of graphite: According to ASTM A247 4grade - 5grade
Pearlite: More than 90%