Ndi - mtengo
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Beam carbon structure Engineering zitsulo ASTM I chitsulo kanasonkhezereka
Dzina: I-beam
Malo opangira: Shandong, China
Nthawi yobweretsera: masiku 7-15
Chizindikiro: zhongao
Standard: American Materials and Standards Institute, Ding 10025, GB
Makulidwe: Zosintha mwamakonda
kutalika: malinga ndi zofuna za makasitomala
Tekinoloje: kugudubuza kotentha, kugudubuza kwa block
Njira yolipirira: Kalata ya ngongole, kutumiza kwa telegraph, etc.
Pamwamba: galvanizing yotentha kapena malinga ndi zomwe makasitomala amafuna
Ntchito zopangira: kuwotcherera, kukhomerera, kudula