模具钢用那个英文表达?die steel 还是mould steel

steel 英语翻译Steel constructure还是Steel structure 钢铁厂是steel plant还是steel factory? 钢结构英文用"steel frame",正确否? 钢铁企业用英语怎么说是Iron and Steel Company 还是Iron and Steel enterpris 铁是iron还是steel carbon steel steel angle Steel是什么意思 steel rebars deformed steel alloy steel