... mesh 302 304 316 316L ISO9001-2008 FACTORY Photo Etching is also called metal etching, chemical etching ... , chemical milling, photo etching, chemical etching, photochemical machining, chemical machining. Applicable ... filter, planer, rating plate, golden card, silver card, Lead Frames, semiconductor industry, Telforn finishing,RF shielding, EMI shielding , ...