1. Frame: Colored Alunimum Alloy, thickness 1. 2mm

2. Board Inner Core: Purple Copper

3. Layer: Plating Black Chrome (Absorptance 95%, Emittance 10%)

4. Cover Board: 4mm Toughened Glass

5. Heat Conservation: Rock Cotton (Back), Polythene (Side);

6. Back Board: 0. 5mm Galvanized Board 1- Ordinary TXT coating: Absorptance 93%, Emittance 45%~50%; 2- Plating Chrome plating coating: Absorptance 95%~96%, Emittance 10%; 3- TINOX (Germany) coating: Absorptance 96%, Emittance 6%.  111