A、碳素鋼 B、中碳鋼 C、不銹鋼 D、高碳鋼
A、碳的質(zhì)量分數(shù)為18%,鉻的質(zhì)量分數(shù)為8% B、鉻的質(zhì)量分數(shù)為18%,鎳的質(zhì)量分數(shù)為8% C、鉻的質(zhì)量分數(shù)為18%,碳的質(zhì)量分數(shù)為8% D、碳的質(zhì)量分數(shù)為0.18%,鎳的質(zhì)量分數(shù)為8%
A、碳素鋼 B、普通低合金鋼 C、高合金鋼 D、中合金鋼