PVC Sliding Window Features: 1) Smooth opening and closing 2) Soundproof, heat insulation, fireproof, damp-proof PVC Sliding Window Features: 1) Smooth opening and closing2) Soundproof, heat insulation, fireproof, damp-proof and corrosion-proof 3) Mechanical assembly and fusion welding4) Available in various PVC productsPacking: according to clients' requests