Tube well lock is also called simple door lock. As a special lock for pipeline door, electric room door and line door, Lelang Hardware RDA-35 is a tube well lock with common size of 37mm and 62mm. If the above two sizes are not suitable, you can Customized according to drawing size. The surface treatment of this product is also imitation gold, light chrome, etc. The key is the standard red key, which is very obvious.