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≥201Mpa.
    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%