... 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 ... button, oval button ans so on 8)Cylinder Construction: Construction key, Common key9)Remark: 6 pins, 5pins Single open brass lock cylinder