Zinthu zomwe zimakhala ndi Q235B (S235Jr mphamvu zokolola ndizoposa 235Mpa) ndi Q345B (S355Jr mphamvu zokolola ndizoposa 345Mpa).
Cholembacho makamaka kutsatira AASHTO M180, GB-T 31439.1-2015 ndi EN1317 muyezo.
The guardrail makamaka kutsatira AASHTO M180, GB-T 31439.1-2015 ndi EN1317 muyezo.
Pakuti makulidwe a guardrail makamaka kudzera 4.0mm kuti 7.0mm kapena kutsatira amafuna makasitomala.
The pamwamba mankhwala ndi otentha choviikidwa kanasonkhezereka, kutsatira AASHTO M232 ndi ofanana muyezo monga AASHTO M111, EN1461 etc.
Chophimbacho chimayikidwa muzitsulo, kuti chitseke ndi kuthandizira chitetezo.Ikhoza kutsitsa mphamvu yamphamvu pamene ngozi ikuchitika.
Ma bawuti amatanthauzidwa mu ANSI B1.13M ya Grade 6 g tolerances.Zinthu za bolt zimayenderana ndi ASTM F568M ya Kalasi 4.6.Zopangira ma bolt osamva dzimbiri zimayenderana ndi ASTM F 568M ya Gulu 8.83.mabawuti.Chithandizo chapamwamba chidzatsata AASHTO M232.