aluminum sliding door 1.Profile thickness:2.0mm 2.Glass:double glazed ... sliding system is 400KG.No matter small door leaf or big leaf,this series door will slide smoothly,steady,make no ... Equipt with a set of fixing device,can prevent the door leaf from getting from the track when closed hard.6 ... with a set of anti-swing system,can ensure the door leaf to run steady instead of swaying back and forth ...