What are the characteristics of the common indoor door lock bodies in our daily life? First, it must have the anti-lock function, that is, the lock body has two bolts, the second is the product's practicability and the number of times of opening and closing must meet the standard, and the third is the smooth and silent opening and closing of the door, which reduces the degree of wear on the door. The interior door lock body that meets the above three conditions has many materials, such as space aluminum, stainless steel 201, zinc alloy, etc., and the material of high-quality interior door lock body must be stainless steel 304, and the lock body panel and bolt are made of stainless steel. Made of 304, it can reduce the abrasion of the door opening and closing, and it is not easy to rust, abrasion, etc. after a period of time.