... Machining Center(CITIZEN,FANUC) 2.Precision:0.01mm 3.Material:Kovar(4J42,4J29) 4.Finish:Gold/Ni/Silver plating Fiber ... Optic Precision Metal Component-Case Module of package Material availableBrass,Copper,Kovar,Invar,WCu,Stainless steel, Aluminium, ... Quality always comes first.4.Standard quality tests check of all types of products before shipment.5.Responsible for after-sales ...