碳素钢
Carbonsteel
合金钢
Alloy steel
预硬钢、淬硬钢
Pre-hardened steel、Hardened steel
不锈钢
Stainlesssteel
铸铁、球墨铸铁
Cast iron,Nodularcast iron
铜合金
Copperalloy
铝合金
Aluminiumalloy
钛合金
Titaniumalloy
耐热合金
Heatresistantalloy
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