The double bolt mortice door lock body is a common lock body for indoor doors. As the name suggests, the double bolt mortice has two lock tongues, one is to cooperate with the door handle to open and close the door, and the other is a reverse lock to protect privacy and prevent theft. When choosing a double tongue lock body, we need to know that the lock body is an important part of the door lock. A high-quality lock body can determine the service life of the door lock. In terms of the material of the lock body, you need to choose high-quality stainless steel 304. Suitable, not only durable and strong.