... Series:50,70,80,90,110,etc Aluminum Sliding Windows1. Elegant and fashionable model.2. Excellent sound and thermal ... blasting, polishing, bright dip. etcarious shapes, parameters and colors availableOne-stop Service: Mould, Extrusion, Surface treatment, Fabrication, Welding and Assembly, etc ... , drilling, welding and assembly, etc. . OEM service is workable. aluminium sliding window