Kodi ma rivets osawoneka bwino okhala ndi ma rivets osawoneka bwino mbali zonse ziwiri ayenera kuyikidwa mbali zonse ziwiri za chinthucho?

Chonde onani chithunzi cha riveting. Ngati mukufuna kuti ikhale yathyathyathya mbali zonse ziwiri, muyenera kuboola mabowo mbali zonse ziwiri.