Liaoning Zhonghai United Door Industry Co., Ltd. has a strong edge in the field of intelligent window - opening equipment. The company integrates R & D, design, production, customization, processing, and sales of products such as fire - fighting automatic smoke - exhaust windows, fire - linkage smoke - exhaust windows, and electric daylighting and smoke - exhaust skylights. It has its own production and processing team as well as a professional sales team.

Our company has strict product inspection standards and can provide non - standard customization. Moreover, the company has a complete after - sales system, with service points set up in multiple regions, and is able to offer on - site services. In addition, the company took the lead in introducing advanced equipment and technology, adopting sophisticated production techniques and complete testing equipment. Adhering to the quality policy of "Quality coexists with the company, and reputation stays with the customers", the company has successively developed and produced electric skylights and wind - proof skylights.

As a source manufacturer of skylights, it not only manufactures various specifications and models of ventilation skylights, smoke - exhaust skylights, roof natural ventilator windows, etc., but also provides services such as leak repair, renovation, and installation of skylights in old factories. The company has a rigorous quality control system to ensure product performance. With 20 years of experience accumulation in the ventilation industry, it has served many large - scale enterprises and can provide customized ventilation skylight solutions. It has a modern production line with strong manufacturing capabilities. Its products are sold throughout the country, supported by an extensive sales network. The company also has a professional technical installation team, offers 7×12 - hour online consulting services, and has a sound after - sales service.