The service life and maintenance comfort level are not as good as the track door. The rail door is not completely unserviceable, but relatively troublesome. I saw someone saying that the hanging rail door would shake, in fact, it was because there was a roller on the ground that limited shaking was not installed properly. After installation, the shaking will be greatly reduced. At the same time, if the quality of pulley and slide rail is not reliable, problems such as door panel deformation, poor push and pull, and serious noise will occur from time to time. Sliding door is definitely not as durable as having track door sliding door. At the same time, Sanlian can easily cause hardware problems at the junction of the two doors.
