求几个钢材名词... ... free-machining alloy steel 易切削合金钢 full killed steel (完全)镇静钢 full-hardened steel 全淬硬钢 ...

汉英词典 ... 微稳定煤 liptite 完全镇静钢 full killed steel 为车制螺纹的镦粗 upset for threading ...