Regular maintenance is crucial for extending the service life of electric window openers. It is recommended to inspect the motor, wiring, and guide rails every three months, promptly removing dust and debris; avoid overloading; and regularly lubricate mechanical components to ensure smooth window operation.

Although door and window handles are small components, they directly affect daily usage convenience and safety.

3H Building Hardware will continue to uphold the development philosophy of "win-win cooperation and harmonious growth," focusing on advancing its expertise in door/window hardware and sealing systems.

3H Building Hardware remains steadfast in its belief: Only by staying true to our founding vision and consistently delivering both brand excellence and product quality can we secure market success and reputation. Moving forward, we will continue to uphold our artisanal craftsmanship, deepen R&D innovation, and refine our end-to-end service ecosystem. Through superior products and solutions, we aim to drive high-quality development in the doors, windows, and curtain wall industry, living up to the honor and mission bestowed by the AL-Survey Brand Awards.

This standard applies to common window types such as casement windows (inward or outward opening), top-hung windows, and bottom-hung windows.