Ferrous Metal Foundries Industry in the U. s.
美国黑色金属铸造业。
Mammoth machines are always made of ferrous metal.
大型机械的材质一般是黑色金属。
The lead is a common non-ferrous metal element in the gold concentrate.
铅是金精矿中常见的有色金属元素。
I am particularly good at the company's stainless steel and non-ferrous metal processing.
我公司尤其擅长不锈钢及有色金属的加工。
Ferrous alloys are those in which the base or primacy metal is iron...
含铁类合金中的基本或主要金属是铁质。
Ferrous alloys are those in which the base or primacy metal is iron...
含铁类合金中的基本或主要金属是铁质。
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