Mapini osalala a cylindrical nthawi zambiri amakhala ozungulira ndipo amakhala ndi zida zinayi

Mapini osalala osalala nthawi zambiri amakhala ozungulira ndipo amapangidwa ndi zida zinayi, zomwe ndi mapini, ma riveting seti, akasupe, mitu ya mapini, ndi ma riveting seti okhala ndi ma grooves.