... , chemical etching, photochemical machining, chemical machining. Applicable industries: Toy factory, decorative sheet metal, toy electric etching foil, model etching foil, appliance, electronic ... ,RF shielding, EMI shielding , ,Decorative ornaments ,Grills, grids, sieves, and meshes. Applicable materials: Stainless steel sheet, copper sheet, aluminum foil, ferronickel alloy, iron ...