... *9.5mm Surface:GP,NP,CP,AB brass,aluminum door cylinder of door lockMaterial: Brass, Zinc Alloy, Iron, Al, ... : sintered steel ( very hardened ) Key : iron key or brass key ( 3pcs /set , 5pcs /set ) Lock core: ... bead: brass and iron ( we can do 5 or 6 pcs hoodles by customers' requirement) Knob: ... factory is not busy, 15~25daysPacking: gift packing or blister packing, also can as customer.s designdouble ...