1. Itha kugwiritsidwa ntchito yonyowa komanso yowuma.
2. Malo abwino ogwirira ntchito opanda madzi.
3. Ufa wapamwamba wa diamondi wamafakitale wosakanikirana ndi chomangira cha utomoni, magwiridwe antchito apamwamba komanso moyo wautali wautumiki.
4. Spacer yothandizidwa ndi nsalu ya nayiloni, imatha kukwaniritsa zosowa zosiyanasiyana za chopukusira chamanja, makina oyeretsera pansi, makina opukutira a ceramic.