... for blank key 3.OEM orders 4.ISO 9001 Certificate lock keys 27# Door blank key 1.Material : Brass, Nickel silver ... , key blank made by new material,not recycle material.we pick the brass which is complied with ROHS standard. During production ... door5-Exit doorSurface treatmentBrass, nickel platedOthersDesigns as customer's requirements lock keys 27#