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 ... industry.As a well-established manufacturer , we supply products of high quality at competitive price as well as best ...