FERITIC DUCTILE IRON PER ASTM A-395 EXCEPT NO POST CAST HEAT TREATMENT AND THE AS CAST PROPERTIES SHALL BE 65 KSI TENSILE,45 KSI YIELD,12%ELONGATION,AND BHN 170-241) U& A& D8 _+ D/ u
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[ 本帖最后由 userkypdy 于 2007-8-5 17:51 编辑 ]