Ena ke nyeoe ea sefofane bakeng sa lisebelisoa tsa molumo, tse loketseng ho tsamaisa lisebelisoa tse kholo tsa sethala bophelong ba letsatsi le letsatsi. Nyeoe ea sefofane e entsoe ka thepa e boima e tsoang Chaena, ho kenyeletsoa liloko tsa serurubele, mabili, mapolanka a sa cheng, liphahlo tsa selemo le aluminium ea boleng bo holimo.
Re feme e nang le boiphihlelo ba lilemo tse 15, e sebetsanang le tlhahiso ea lihlahisoa tse ikhethileng joalo ka mekotla ea litlolo, linyeoe tsa litlolo, linyeoe tsa aluminium, linyeoe tsa sefofane, joalo-joalo.