... 90mm.100mm Material: brass/iron/zinc alloy Mortise door lock cylinder DAVID Locks Manufactory CO.,LTDOur Brand: MEGGO, ULTRA, ... , DAVID, GOLDLEAVES AB color high quality lock cylinder 70mm MEGGO :Our door lock cylinder are best-selling in Mid-east, Africa ... ,lock cylinder material : zinc, brass,iron and aluminum Cam : sintered steel ( very hardened )/ 30degreeKey : iron , brass( 3pcs /set , 5pcs /set ...