... shell zinc inside cylinder lock 1 material: brass, AL, iron, zinc alloy 2 different surface finished 3 60mm,70mm aluminium shell zinc inside ... cylinder lock Material: Brass, Zinc Alloy, Iron, Al, etc.Length: 40-120mmCam : ... or brass key ( 3pcs /set , 5pcs /set ) Lock core: brass or zinc Sealed bead: brass and iron ( we can do 5 ...