... berylium, brass, Nickel silver, carbon steel, copper, galvanized, phosphor bronze,spring steel, stainless steel,steel,plastic..surface treatment:zinc/nickel/chromeplating, Galvanization ... plain, polishing, passivate..scope:full size upon customer's drawing.certificate:ISO9001-2000, ensure all products been ... ..Package:polybag +carton/or according to customer's requirement .tolerance:can be as small as ...