Lub cev tseem ceeb yog ua los ntawm ss 304 # nrog cov tsos ntawm tag nrho cov xuab zeb kos duab. Cov khoom tsim nyog thiab cov qauv, muaj zog & ruaj khov, zoo nkauj & ruaj khov kom muaj kev cuam tshuam kev nyab xeeb.
Nws ua tau raws li kev nyab xeeb ntawm zaub mov thiab kev nyiam huv ntawm txhua lub tebchaws.
Nrog humanized guardrail tsim, stair kauj ruam 304 #, qhov chaw ua hauj lwm yog ua los ntawm T = 5.0 skid phaj txhuas phaj, uas muaj peev xwm muab tag nrho cov kev nyab xeeb ntawm tus neeg teb xov tooj thiab zoo heev muaj feem xyuam rau qhov tseem ceeb ntawm kev ruaj ntseg ntau lawm.