White aluminium external extra wide accordion bifold folding glass patio doors

· It uses the widened and thickened seal rubbers for door panels on better sealing performance. It has anti-clamping function to project family in safety.

· Double glass can effectively reduce the vibration resonance and block the noise transmission,

· Bottom tracks use dual water-proof and draining system, that thoroughly solve the leakage problem of aging

· 12mm width of aluminum strips ensure the connection tightness and sound-insulation effect. It has multiple wind and waterproof designs with sound-proof,

dust-proof and water-proof functions.

· It uses SUS304 stainless steel guiding tracks , each hinge can load 80KG and work 100000 times without damage.

· 5mm double-layers fully sealed automotive grade safety glass, with chemical molecular sieves, argon inflated, and dual sealing, it ensure better sealing performance.