... produce plenty of frames with different styles. The frame is elegant, beautiful as traditional products. Material: Polystyrene(PS) ... follows: 1. Environment-friendly Product: The raw material is polystyrene, which is recycled, anti- ultraviolet radiation, antibacterial, and doesn't ... PRO-environment 2. Stable product: The PS frame moulding is mothproof, anti-corrosion, moisture-proof, non-shrink. And ...