The outer frame of HYQJ120C series adopts a double thermal break structure.

The outer sliding frame adopts 90-degree splicing; the frame of sash adopts 90-degree end milling screw splicing technology.

The lower track adopts a combined sinking drainage, which is conducive to the lower pulley not being easily soaked in water, using water pressure to drain water, smooth drainage, beautiful appearance, and increases the service life of the lower pulley.

Double-track design of the lower track, and double-row wheels design of the glass sash make the door sash open and close more smoothly.

The door sash adopts a multiple strips sealing design, and the upper and lower overlapping parts of the indoor and outdoor sashes use special sealing accessories to block strong winds layer by layer, insect-proof, dust-proof, and waterproof.

 Customized upper anti-sway wheel to reduce the door sash swing and shaking during sliding.

 The upper rail is also a hidden rail, which is beautiful in appearance and symmetrical up and down.

Adopts push-pull automatic lock.

 This series of glass adopts the process of internal structural glue and external sealing or pressing strip to increase the integrity between the glass and the sash.

 Thickened and strengthened middle mullion to increase the strength of the whole window.

Diversified opening and fixing forms, high load-bearing design to meet the application requirements from small opening sliding windows to super large sliding doors, equipped with one fixed and one pushed opening method, greater transparency, and larger sunlight area.

Glass guardrails use thickened laminated glass, which has a better view and safer.