Steel sawb slitting tshuab felt / steel sawb slitting tshuab tshwj xeeb muaj kev xav, / steel ntawv nro muaj kev xav, uas tuaj yeem ncav cuag qhov ntev teev thiab tuaj yeem siv rau cov tawv ntxuag txoj siv thiab ntawv nqus txoj siv nrog kev tiv thaiv zoo thaum tshav kub.