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

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