20Cr5Cu 20Cr5Cu推土机用钢
18Cr2Ni4WA 18C..
18CrNiMo5轧圆 18..
18Cr2Ni4WA轧圆 1..
18Mn2CrMoBA板材 ..
18CrNiMo7-6圆钢 ..
18MnMoNb轧圆 18M..