Cov khoom siv yog ua los ntawm American standard wide-flangeH Beamnrog tus qauv loj ntawm ASTM A6.Cov qib steel tuaj yeem xaiv tau ntawm ASTM A572 GR50 / GR60, ASTM A992 lossis Q355.Kub-dip galvanizing raws li ASTM A123, ISO1461 thiab AS / NZS4680 tus qauv.Tau kawg, peb kuj zoo siab ua tau raws li lwm cov qauv zoo thiab sib txawv HDG txheej tuab rau peb cov neeg siv khoom, vim nws yog peb cov kev coj ua kom sai sai rau cov neeg siv khoom xav tau thiab ua tam sim ntawd.Lub tuam txhab cov khoom lag luam mus sij hawm ntev ntawm cov lus qhia tshwj xeeb ntawm WF kab teeb 2000 tons, kom tau raws li cov neeg siv khoom xav tau ceev tshaj plaws.