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Railroad log khub yog tus yuam sij los xyuas kom meej kev nyab xeeb ntawm cov tsheb ciav hlau.Nyob rau hauv tus txheej txheem ntawm kev ua tiav xoom-defect ntau lawm, railroad khoom manufacturers yuav tsum nruj me ntsis tswj txhua kauj ruam ntawm cov txheej txheem ntau lawm, thiab cov xovxwm-haum nkhaus tawm los ntawm lub wheelset equipping tshuab yog ib qho tseem ceeb qhia txog qhov zoo ntawm wheelset assembly.Cov ntaub ntawv tseem ceeb ntawm no series ntawm cov khoom yog nyob rau hauv lub tshav pob ntawm illumination thiab tshuaj xyuas.