For mechanical door lock , buli muntu alina okweraliikirira okw’enjawulo ku kyo, era kye tukola kwe kwongera ku byetaago by’ebintu bya buli kasitoma, kale omutindo gw’ekizibiti kyaffe eky’omulyango ogw’ebyuma gubadde gusiimibwa nnyo bakasitoma bangi era nga banyumirwa erinnya eddungi mu nsi nnyingi. Zhongshan Toptek Security Technology Co., Ltd Mechanical Door Lock balina enkola ey'engeri & enkola ey'okukola & ebbeeyi evuganya, okumanya ebisingawo ku kkufulu y'oluggi lw'ebyuma , nsaba obeere wa ddembe okututuukirira.