Opening method: The frame sash is designed to be flush both indoors and outdoors, with simple and neat lines, and a simple and flat facade effect. The window sash is in the open state, and the opening sash is parallel to the exterior facade of the building.

Two layers of high-strength sealing: A 130mm thick frame with exclusive insulation tapes of Bucalu, providing five layers of protection: heat preservation, thermal insulation, soundproofing, waterproofing, and durability.

Patent safety device: The Bucalu patented hinge technology effectively avoids the risk of window sash detachment and greatly improves the safety performance of sliding windows.

Integrated structure of window-screen-guardrail: The systematic structural design of screen window glass guardrail takes into account mosquito prevention and safety performance, multiple protections, and high practicality.

Ergonomic design: The push rod handle adopts the classic S-Plus series design of the Bucalu family, which has undergone extensive ergonomic research, making it labor-saving and more comfortable to use.

Upgraded configuration: The upgraded electric model; The pushrod handle is removed, so that the visual enjoyment is no longer interrupted.