Rail Fastening System

Dab tsi yog cov khoom ntawm kev tsheb ciav hlau spikes

Ntau yam khoom siv ntxiv rau cov khoom sib txuas

E-type fastening system yog ib qho kev daws teeb meem nrov rau kev teeb tsa kev teeb tsa, tuav cov ntsia hlau hauv qhov chaw ntawm cov neeg pw hauv qa

Yuav Ua Li Cas Xaiv Txoj Kev Taug Kev Rail Bolt Chaw Tsim Tshuaj: Ib Daim Ntawv Qhia 8-Point

Yuav Ua Li Cas Xaiv Railway Qav Bolts