(1)Name:Washer,flat washer (2)Mateial:Stainless steel,steel aluminium or brass (3)Finish:zinc plated,chrome,black,polish etc (1)Name:Washer,flat washer(2)Mateial:Stainless steel,steel aluminium or brass(3)Finish:zinc plated,chrome,black,polish etc(4)ISO9001 Round flat washer