合金结构钢18Cr2Ni4WA 25Cr2Ni4WA 45H 45AH 15CrH 15CrAH 20CrH 20CrAH 20Cr1H 20Cr1AH 40CrH 40CrAH 45CrH 45CrAH 15CrMoH 15CrMoAH 20CrMoH 20CrMoAH 22CrMoH 22CrMoAH 42CrMoH 42CrMoAH 16CrMnH 16CrMnAH 20CrMnH 20CrMnAH 15CrMnBH 15CrMnBAH 17CrMnBH 17CrMnBAH 40MnBAH 40MnBH 45MnBH 45MnBAH 20MnVBH 20MnVBAH 20MnTiBH 20MnTiBAH 20CrMnMoH 20CrMnMoAH 20CrMnTiH 20CrMnTiAH 20CrNi3H 20CrNi3AH 12Cr2Ni4H 12Cr2Ni4AH 20CrNiMoH 20CrNiMoAH 20CrNi2MoH