兑水 发表于 2009-9-11 15:37:40

ASTM B 208-2006砂型永久型离心型和连续铸造铸件用铜基合金...

B208-04 Standard Practice for Preparing Tension Test Specimens for Copper Alloy Sand, Permanent Mold, Centrifugal, and Continuous Castings
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