Cov khoom siv yog ua los ntawm American standard wide-flange H-beam nrog rau qhov loj ntawm ASTM A6. Cov qib hlau tuaj yeem xaiv tau ntawm ASTM A572 GR50 /GR60, ASTM A992 lossis Q355. Kev kub-dip galvanizing ua tau raws li ASTM A123, ISO1461 thiab AS/NZS4680 cov qauv. Tau kawg, peb kuj zoo siab ua tau raws li lwm cov qauv zoo thiab HDG txheej tuab sib txawv rau peb cov neeg siv khoom, vim nws yog peb txoj kev lig kev cai los teb sai rau cov neeg siv khoom xav tau thiab ua tam sim ntawd. Lub tuam txhab cov khoom muag ntev ntawm cov lus qhia dav dav ntawm WF beams 2000 tons, kom ua tau raws li cov neeg siv khoom xav tau kev xa khoom sai tshaj plaws.