详细说明
合金结构钢:20Mn2 A00202 30Mn2 A00302 35Mn2 A00352 40Mn2 A00402 45Mn2 A00452 50Mn2 A00502 20MnV A01202 27SiMn A10272 35SiMn A10352 42SiMn A10422 20SiMn2MoV A14202 25SiMn2MoV A14262 37SiMn2MoV A14372 40B A70402 45B A70452 50B A70502 40MnB A71402 1 Cr V 1 Mn+S 1 Ni Cr Mo