Embedded frame and fan structure to ensure a close fit between the frame and fan greatly improves the sealing and waterproof performance, energy saving strength and face value.

Strictly selected 304 stainless steel material, high load-bearing force due to the durability of rust, smooth and lightweight noiseless push and pull for a comfortable experience.

Adopts anti-swing device, which effectively reduces the swinging of the window sash, improves the load-bearing capacity while preventing shaking, operates more smoothly and stably.

304 diamond mesh, effective anti-mosquito and anti-insect, not easy to get dusty, rust and corrosion resistant and durable.