The handle adopts ergonomic design with smooth operation and comfortable hand feeling, and is precisely adapted to the folding window hardware system to ensure stable positioning of the window sash, convenient opening, and enhance the operation efficiency of the whole window.

Full-automatic open and close the lock, free your hands patented balancer any hovering patented 24V ultimate silent motor, stop when blocked independent programming controller, intelligent control.

Physical structure realizes smooth opening after one-touch automatic unlocking Synchronized lifting of both sides of the rack and pinion engagement The window sash is equipped with a balancer, and the sash is positioned at the corners of the window to run smoothly under the slight drive of the motor.