Lock cylinder is also called euro profile cylinders, security cylinder, key cylinder, cylinder lock etc. It is the most important part of locks, can even say that a lock is good or bad depends on lock cylinder. In order to meet the needs of lock, we provide customers various colors, sizes and materials of mortise door lock cylinders. Generally speaking, you can find a suitable mortise door lock cylinders in many of our products. The door lock cylinder is suitable for wooden door, metal door, commercial door, interior door, outer door, swing door, etc. The surface of lock cylinder for front door is chrome plating, it is bright and durable. if you have questions when you are choosing lock cylinder, you can contact for answer, we are pleased to serve you.