Brake Rotor Material: Gray Cast Iron,ductile cast iron etc Certification:ISO9001-2000 TS16949 Model Number: all makes and models Size: The same as OEM Process: Sand casting, Investment casting etc Color: Blue, Black or As the customer's requirement I..BrakeRotor Brief Introduction1)Available for All Foreign and Domestic Auto, Truck and SUV Vehicles 2)Smooth rotor surface reduces brake noise and extends pad life and are vented for cooling 3)Fits all OEM applications for a perfect fit 4)Guaranteed vibration-free performance 5)X-Ray inspected, turned and balancedII..Mechanical property1)Tensile strength: § b≥201Mpa. 2)Hardness: HB187 - 241 3)Statement of graphite: 90% of the graphite is Lamella, the remainder are no more than 10%. 4)The lamella graphite mostly is type " A" 5)Length of graphite: According to ASTM A247 4grade - 5grade 6)Pearlite: More than 90%2)Sensitive brake, steady friction coefficient, durable, without noise and public harm. deliver better heat and gas dissipation.They are specifically designed to run cooler and promote improved wet and dry braking performance.3)The natural enemy of braking performance is heat; When temperature levels reach critical levels, a thin layer of gasses actually prevent the brake pads from making complete contact with the rotor friction surface; The addition of slotting or cross-drilling to the friction surface of the brake rotor promotes the evacuation of these gasses and improves stopping performance and pedal feel.III.Inscription styles:a) Helios Foundryb)Standard inscription c)As per customers' requests IV.Inspection: a)Foundry in-houseb)Third party inspection available upon request etc Quality Control ConditionV.Coating:a)galvanized,black bitumen,green etcb)Without coating c)Coating as per customers' requirement VI.Packing: a)Wooden Pallet b)Wooden Case c)Plywood,Waterproof membrane d)according to customers' requirements VII.Equipments: a) machining equipments: CNC machining centers, NC lathes, boring lathe, vertical lathe, milling machine, grinding machine, planing machine, broaching machine, drill machine, and turning machine, etc. b) casting machine :FBM production line, resin sand production line, molding machine production line etc c) physical and chemical equipments: spectral analyzer--Omnipotence hydraulic pressure test equipment, Metallographic analyzer, Ultrasonic detector, HB hardness analyzer and so on. VIII.Quality Control: 1)Raw Material Quality Control: To ensure that all the incoming raw material meets the standards, everysingle lot of raw material received are inspected and tested both physics and chemistry by quality controldepartment.2)Products Design Quality Control: New products are designed through CAD. Based on trial manufacturing,evaluating,and then finalizing the design can a new kind of product be put into production.3)Processing Quality Control: Compiling strict technique files, operating carefully, keeping the equipment ingood condition is the key to ensure the quality to meet the standards.4)Finished Products Quality Control: Adopting advanced inspecting and testing equipment,put 100% productsunder strict inspection according to corresponding abroad standards to realize the reliable quality.5)After-sale Service: CUSTOMER FIRST has always been our motto. We supply best products together withsame best service to our customers. We also supply technical consultation and are responsible for quality thoroughly6)Model Number: sport car or racing car brake rotors as per our customer's drawing or special ordersIX.Delivery time: with 30 days after we received the 30% payment in advance. X.Design: As per the customers drawings or sample OEM: yes