... zinc alloy Mortise door lock cylinder DAVID Locks Manufactory CO.,LTDOur Brand: MEGGO, ULTRA, SQIEK, FEELITY, DAVID, GOLDLEAVES AB color high quality ... .our brand MEGGO is only for high quality, conform to BS EN1303:2005 standard ... ,80mm,90mm,10mm...120mm,lock cylinder material : zinc, brass,iron and aluminum Cam : sintered steel ... . We have one group of professional Quality Control . You can call or email ...