(来学网)具有良好的拉伸强度,伸长率较好、不易折断、硬度适中的铸造用18-8不锈钢在国内用它替代铸造金合金,其铸造收缩率为
  • A.
    (来学网)0.8%~1.0%
  • B.
    (来学网)1.1%~1.4%
  • C.
    (来学网)1.8%~2.1%
  • D.
    (来学网)1.5%~1.7%
  • E.
    (来学网)2.2%~1.4%