metal stamp tag 1)Nickel lead free 2)Pass factory audti from TCCC 3)18 ... )10 years after-sale service Laser engraving cool brass metal stamp tag : MaterialZinc alloy, brass, copper, iron, pewter, stainless steel, etc.TechniqueDie ... -casting, engraved, painted, silk screen, offset printing, etc.PlatingGold, silver, nickel, brass, copper, antique plating, misty plating, daul plating, etc.Design2D, 3D ...