Consumer information about the medication TETRACYCLINE - ORAL (Sumycin), includes side effects, drug interactions, recommended dosages, and storage information. Read more about the prescription drug TETRACYCLINE - ORAL.
conventional automotive brake rotors are cast from G3000 grey cast iron. These work well with a pad material designed to operate using adherent friction. Most of the European system rotors are cast from a high carbon G4000 grey cast iron. These work well with a pad designed to operate using abrasive friction, such that the rotor is sacrificial just like the pad.
1 Brake pads are the friction elements of a disc brake system. 2  Theyâre made from a flat piece of steel with a thick friction media applied to one side.  Unlike brake shoes, brake pads come in a wide variety of friction materials that are tailored to different driving styles.