兑水 发表于 2009-9-27 10:43:15

ASTM D 1122-1997 用液体比重计测量发动机冷却剂及其浓缩物比...

D1122-97a(2002) Standard Test Method for Density or Relative Density of Engine Coolant Concentrates and Engine Coolants By The Hydrometer
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