Re fana ka mefuta e fapaneng ea li-flangs tse telele tsa molala ho fihlela litlhoko tsa boenjiniere 'me li sebelisa li indasteri e mengata. Linotlolo tsena li kopana le litekanyetso tsa machabeng tsa ASTM, Asi, Asi, Jis, MSSI, AIS API, AIS API, JISTI, MSSI, MSSI, MSSI, MSSI, MSSI, MSSI, MSSI, MSSI, MSSI, MSSI, MSSI, GISS