 keystone antey emti ?
 keystone anede archs yokka tap black .  idi ooka vampu yokka mukhyamaina bhaagam endhukante idi itara raallanu padakundaa chesthundu .  ooka keystone trapezoid aakaaramlo umtumdi ,  idi paibhaagamloo unna visaalamaina bhaagam ,  kanuka idi vampu nundi jaaripodu .  manaollu keystone ‌ thoo thoranaalapai bhaaree paikappulatho adbuthamaina bhavanaalanu nirminchaaru .  chaaala mandhi vaastusilpulu mariyu kalaakaarulu kutumba chihnalu ,  chihnalu mariyu design ‌ lanu keystone ‌ lapai chekkaaru .