您要查找的是不是：
- PD3鋼軌鋼PD3 rail steel
- U71Mn鋼軌鋼U71Mn rail steel
- 合金鋼軌鋼alloy rail steel
- 低合金鋼軌鋼low alloy rail steel
- PD3鋼PD3 steel
- PD3鋼軌PD3 rail
- 鋼軌鋼rail steel
- U75V（PD3）鋼軌U75V(PD3)rail
- 鋼廠(chǎng)steelworks
- 碳鋼carbon steel
- PD3鋼軌的強度性能優(yōu)于U71Mn鋼軌,但U71Mn鋼軌更適合于高速鐵路鋪設使用。The strength character of PD3 rail is superior to U71Mn rail,but U71Mn rail is fit for the high-speed railway.
- 鋼的steel
- 鋼帶metal strip
- 鋼化steel
- 鑄鋼cast(carbon) steel
- 銹侵蝕了鋼軌。Rust has corroded the steel rails.
- 鋼制steeliness
- 螺紋鋼deformed steel bar
- 帶鋼band steel
- 塑鋼plastic steel
