Kub muag Tuam Tshoj Tsis Siv Neeg Corrugated Ibr Hlau Roofing Phab Ntsa Vaj Huam Sib Luag Rolling Ua Tshuab

IBR ru tsev ntawv yob txoj kev tshuab, nws tuaj yeem tsim nrog kev kub ceev, uas tuaj yeem ncav cuag 30m / min, yog tias ib daim ntev yog 3m, nws tuaj yeem tsim tau 10 daim ib feeb.