1.Dual track, it is a very good choice when you are ready to install curtain and curtain gauze, it is more cost-effective, installation is simple. Use the original aluminum, durable, shiny as new, use time more.
2.High-grade color with a POM steel plating cover, the overall will be more texture. Both tracks contain a mute bar, which has a good mute effect. The double-row rail has a wall thickness of 1.5 mm, making it more load-bearing.