兑水 发表于 2009-10-17 10:47:25

ASTM D 5500-1998 对汽车火花点火发动机无铅燃料评定进料阀沉...

D5500-98(2003)e1 Standard Test Method for Vehicle Evaluation of Unleaded Automotive Spark-Ignition Engine Fuel for Intake Valve Deposit Formation
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