BT-SLD mbali-Lock Perder Worder

1. Kukhazikika kwakukulu, kukonza bwino, ntchito yokhazikika kuti musinthe bwino ndikuwonjezera moyo wa chida.
2. Zinthu zophatikizira ndi 20crmnti, yomwe ili ndi ntchito yokhazikika, moyo wautali ndi kuuma kwa wogwira ntchito.
3. Wogwira ntchitoyo amatenga kapangidwe kawiri, komwe kumayenera kumbali zonse ziwiri za spindle kuti muchepetse vuto la chida, motero kuchepetsa kugwedezeka, komanso kumawonjezera chitsulo cha wogwira ntchito.