兑水 发表于 2009-9-14 20:20:50

ASTM B 795-1993测定粉末锻钢部件中合金铁杂质或非合金铁...

B795-93(2002)e1 Standard Test Method for Determining the Percentage of Alloyed or Unalloyed Iron Contamination Present in Powder Forged (P/F) Steel Parts
页: [1]
查看完整版本: ASTM B 795-1993测定粉末锻钢部件中合金铁杂质或非合金铁...