America style double track wall: 1.material:steel 2.finishing: ... .5mm 4.size:640,960,1280,1600,1920 US style double track wall:1.material:steel2.Surface treatment:powder ... ,1280,1600,1920mm5.Character:double slot wall standard,US style.6.we can also produce according to your requirments ... more than 30 countries,especially in Europe ,Asia and America,many of our products receive good feedback from our ...