according to the drawing or samples,material: aluminum,Stainless steel,carbon steel,it can be made from pipe and by casting 1.Product Name: Crimp Ferrule2.Material: Stainless Steel, Steel, Aluminium3.Size: DN020, DN025, DN032, DN040, DN050, DN065, DN080, DN100 Crimp ferrule can be used in a wide variety of applications that benefit from increased coupling retention and a higher assembly working ...