1. Cov Khoom Txhim Kho: Magnesium-aluminium alloy thiab carbon fiber composite fasteners tau maj mam hloov cov khoom siv hlau.
2. Kev txawj ntse: ntse bolts nrog sensors tuaj yeem saib xyuas ua ntej ntawm lub sijhawm thiab tau siv rau siab -ceev tsheb ciav hlau bogies, nrog cov ntaub ntawv yuam kev ntawm<3%.
3. Green Manufacturing: EU yuav txib chromium-dawb fastener plating los ntawm 2025; domestically, environmentally friendly zinc-nickel alloy txheej tshuab tau tsim.
