🌡️ Thermal and Sound Insulation

• Multi-cavity structure profiles (bridge cut aluminum) effectively block thermal conduction.
• Multi-channel sealing design (three seals) tightly fills gaps to prevent sound leakage.

🛠️ Precision Splicing Process

Featuring a 45° diagonal joint with corner code injection glue for maximum performance:

• Structural Strength: Dedicated structural adhesive achieves molecular level bonding.
• Sealing: Adhesive fills all internal gaps, blocking air and moisture.
• Durability: Weather-resistant colloid avoids noise and looseness from thermal expansion.

🛡️ Safety & Hardware

Equipped with specialized corner protectors to avoid harm to children and a full set of HOPO hardware:

• Materials: High-strength aluminum, zinc alloy, and stainless steel.
• Finish: Multi-layer electroplating and powder coating for scratch resistance.

💧 Concealed Drainage System

• Rainwater is effectively discharged outward, reducing backflow risks.
• Enhances air tightness and isolates external noise.
• Hidden design maintains a concise and beautiful appearance.
• Dust and insect-proof with invisible drainage covers.