SAE-AISI S2 (T41902) 抗震模具钢 55CrMoV钢球
SAE-AISI S2 (T41902) 抗震模具钢钻具滚子 55CrMoVShock-Resisting Steel: 55SiMoVA SAE-AISI S2 (T41902) , 55CMфA, 55CMoV, 55CM5фA
SAE-AISI S2 (T41902) 抗震模具钢钻具钢球 55CrMoV , 钻具轴承
Shock-Resisting Steel: 55SiMoVA SAE-AISI S2 (T41902) , 55CMфA, 55CMoV, 55CM5фA