(1)Meterial:Gray Iron 250
(2)Weight: 3-15kg
(3)Chemical composition: 
    C: 3.1-3.2% Si: 1.9-2.1% Mn: 0.7-0.9%
     P: <0.1% S: <0.1%
(4)Mechanics performance:
     Main body degree of hardness: 180-220HBS
     ensure :50,000-80,000km
(5)Design
     As per the customer's drawings
     As per the customer's sample
     As per the customer' s requirements

Factory professional specializes in  engine parts for disc rotor all series,

Plz just tell us the OEM number ,we will give you a competitive price .