Single open lock cylinder 1.Quality warranty 2.Best plating 3.Standard export packing 4.Strict inspection before shipment Double open brass lock cylinder: 1)Material: Brass, Zinc Alloy, Iron, Al, etc. 2)Style: Single, Double & Bathroom Cylinder are available 3)Cylinder length: 60mm, 65mm,70mm,75mm, 80mm 85mm,90mm,95mm,100mm are available 4)Key Design: Arrow Kwikset, Schlage C,Sega19,Weiser,Yale 8 ...