iron lock cylinderMaterial: Brass, Zinc Alloy, Iron, Al, etc.Length: 40mm,50mm,60mm,70mm,80mm,83mm,90mm Cam : sintered steel ( very hardened ) Key : iron key or brass key ( 3pcs /set , 5pcs /set ) Lock core: brass or zinc Sealed bead: brass and iron ( we can do 5 or 6 pcs hoodles by customers' requirement) Knob: Peanut button, ..