Rotor / Disc /Hub FEATURES 1) Slotted Drilled and Vented Design From Jingheng Auto Parts. Rotor surface temperatures,which ... overheat,causing rapid brake pad deterioration, excessive rotor surface wear,and warping. Manufactured From Cast Iron, Cast iron is the best ... will not warp. 3) Hub Assembly Parts Available: Hub bearing,Seal,Dust Gap,Springs,Bolts,Nuts,Washers and other Stamping Parts,we could ...