Ukadaulo woluka wa B.comb, kugwira bwino komanso kukana kuvala kwambiri
yosazizira komanso yotentha, yosagwira madontho ndi madzi
zomasuka, zopumira, zosavala, kusinthasintha kwakukulu
chitonthozo chabwino, kusinthasintha kwakukulu, kupuma komanso kukhazikika
Kukana kwa A7, kukana kuvala, kutonthoza komanso kusinthasintha kwakukulu
chopumira komanso chosavala, chogwira bwino komanso kusinthasintha
zokutira za nitrile zokhala ndi thovu laling'ono, zoletsa kuterera komanso zosavala
wapadera kuluka njira, mpweya wabwino ndi chitonthozo mkulu
mafuta-kuthamangitsa bwino, odana ndi kuterera komanso kukana kwambiri abrasion
touch screen, mafuta-repellency bwino, anti-slip komanso kukana kwambiri abrasion
kukwanira zala, kusinthasintha kwakukulu, kusavala, kugwira mwamphamvu
chitonthozo ndi kusinthasintha, madontho pa kanjedza amapereka mphamvu yogwira