... guarantee:200,000 kilometers.2. Main products: Enigne valve,valve guide,valve seat3.Material: We use High Phosphor Cast Iron Alloy ... to be our Valve Guide MateriaL.High attrition endurance, High temperature endurance,High ... , TOYOTA, HONDA, MITSUBISHI, SUZUKI, LEXUS, MAZDA,DAEWOO, HYUNDAI, KIA, VOLVO, DEUTZ, BENZ, BMW, AUDI, OPEL, VOLKSWAGEN, PORSCHE, SMART, LISTER ...