您要查找的是不是：
- PD3钢轨钢 PD3 rail steel
- U71Mn钢轨钢 U71Mn rail steel
- 合金钢轨钢 alloy rail steel
- 低合金钢轨钢 low alloy rail steel
- PD3钢 PD3 steel
- PD3钢轨 PD3 rail
- 钢轨钢 rail steel
- U75V（PD3）钢轨 U75V(PD3)rail
- 钢厂 steelworks
- 碳钢 carbon steel
- PD3钢轨的强度性能优于U71Mn钢轨,但U71Mn钢轨更适合于高速铁路铺设使用。 The strength character of PD3 rail is superior to U71Mn rail,but U71Mn rail is fit for the high-speed railway.
- 钢的 steel
- 钢带 metal strip
- 钢化 steel
- 铸钢 cast(carbon) steel
- 锈侵蚀了钢轨。 Rust has corroded the steel rails.
- 钢制 steeliness
- 螺纹钢 deformed steel bar
- 带钢 band steel
- 塑钢 plastic steel
