How to choose sliding rail door closer?

  In recent years, the slide rail door closer has been widely used in homes or large shopping malls because of the practicality of the door closer and the adjustable closing speed. Lelang Hardware's RDC-06 slide rail buffer door closer is suitable for door weights up to 20-45KG, with two-speed adjustment (locking speed adjustment, closing speed adjustment), not only has the function of ordinary door closers, but also adjustable closing The speed of the door is practical and beautiful.