Selelekela:Li-purlins tsa tšepe li sebelisoa bakeng sa ts'ehetso ea mohaho mehahong ea mohaho oa tšepe.Hangata, li-purlins ke likarolo tse kholo tsa mehaho ea marulelo.Li-purlins tsa marulelo li tšehetsoa ke li-rafers kapa marako a mohaho 'me marulelo a marulelo a behoa holim'a li-purlins.