... door,aluminum sliding door,sliding door 1.thickness:1.2mm 2.double tempered glass 3,high quality,cheap price balcony ... rail sliding door, hanging pushdown sliding doors, can single-track, two track and three track.2 standard configuration: SI handle, GU warded lock, pulley ... when sliding, firm and special effects.7 Separation of rail track 3.5CM optional, 1CM low and flat copper strips, watertight ...