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Chingwe choteteza cha matabwa atatu
Chotchingiracho chikuyenera kutsatira makamaka muyezo wa AASHTO M180, GB-T 31439.1-2015 ndi EN1317.
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Choteteza cha W-Beam
Zipangizo zake makamaka ndi Q235B (S235Jr mphamvu yobereka ndi yoposa 235Mpa) ndi Q345B (S355Jr mphamvu yobereka ndi yoposa 345Mpa).
