... space.1. Style - PVC sliding window 2. Profile - Chinese top brand, high quality. Frame: 60, 80, 88, series .Sash: ... 52.15+12+51.73 8. Hardware system- Domestic good brand with high quality. Imported hardware and customer's stipulated brands ... Air-proof, water-proof, sound insulation, thermal insulation, anti-aging, good combustion-retarding performance, resist impacts, easy maintenance. 12. Package - ...