... Component Material availableBrass,Copper,Kovar,Invar,WCu,Stainless steel, Aluminium, White/Black Delrin etcFinishGold/Ni/Silver plating, Bkackening, ... manufacturer.2.ISO-9001 Certificated.3.Quality always comes first.4.Standard quality tests check of all types of ... customer after the trial orders.7.Making progress with customers together. Equipment Brass Precision Component with Good Quality