... 2: High temperature endurance Function 3: High erosion endurance BENZ Valve GuideHigh attrition endurance, High temperature endurance, High ... ) Main products: valve guide, valve seat, valveService main engine and after sale service market at home and abroad, and ... MITSUBISHI, SUZUKI, LEXUS, MAZDA,DAEWOO, HYUNDAI, KIA, VOLVO, DEUTZ, BENZ, BMW, AUDI, OPEL, VOLKSWAGEN, PORSCHE, SMART, LISTER, LAND ROVER, ...