1) Simple structure, easy installation 2) Smooth sliding 3) Soundproof, heat insulation, fireproof, damp-proof,etc. Product Description1 Available in a wide range of standard sizes as well as custom shapes and sizes 2 Simple and convenient installation 3 Wonderful appearance with high quality 4 waterproof, anti aging, anti-corrosion, heat preservation and sound insulation 5 Offtering a wide ...