Nke a onwe tightening fastener na-arụpụta oké elu shiee na tensile ụkpụrụ si pụrụ iche, obi ike, ekpochi na ebe mandrel na pụrụ iche emebere aluminom ahu.

Nke a onwe tightening fastener na-arụpụta oké elu shiee na tensile ụkpụrụ si pụrụ iche, obi ike, ekpochi na ebe mandrel na pụrụ iche emebere aluminom ahu.