function
1. Anti-theft performance: class b anti-theft;
2. Sound insulation performance: the sound insulation can reach 35 decibels;
3. Thermal insulation performance: the heat transfer coefficient K is less than 2.0W/m2.K.
4. Airtight performance: air tightness is not lower than grade 4;
5. Fireproof performance: fire-resistant time 1.00h;
6. Durability: through repeated opening and closing of 200,000 times.
The characteristics of
1. According to the decoration requirements, it can be decorated with different decorative styles;
2. Door frame, door set and door fan style are integrated;
3. Anti-theft, sound insulation, fire prevention and sealing.
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