... ) compliance 3. OEM & ODM service Metal stainless steel stamping pipe clamp:made by the way of stamping,and then do the surface treatment. DeAn ... .Materials: Iron, stainless steel, brass, copper, alloy steel,etc.Surface finish:Polishing, Plating (Zinc, Nickel, Chrome,etc), Coating.Making Process:Cutting,Stamping, bending, punching ...