Our 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 1) Tensile strength: 210Mpa 2) Hardness: HB187 - 241 3) Statement of graphite: 90% of the graphite is lamella, remainder are no more than 10%, lamellagraphite mostly is type "A" 4)Length of graphite: According to ASTM A247 4 grade - 5 grade 5)Pearlite: More than 90%
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