Hainan Jinhualong Investment Co., Ltd. is a subsidiary of Zhongwei (Liaoning) Construction Engineering Co., Ltd., specializing in metal doors and windows with high-tech enterprise status. It offers comprehensive solutions across design, production, installation, and sales, holding 6 patents and 9 trademarks. The company provides localized engineering services and has strong technical expertise in metal door and window manufacturing.
The 80 Series is engineered with concealed drainage and specialized waterproof construction, ensuring rainwater is efficiently diverted away and prevented from seeping indoors.
The integrated heat insulation system stabilizes interior temperatures to cut heating and cooling costs, while the acoustic sealing structure minimizes exterior noise for a quieter environment.
Yes. Thanks to the corrosion-resistant aluminum frame and dedicated waterproof sealing, they are well-suited for bathrooms and high-moisture spaces.
The casement mechanism allows wide outward opening angles, facilitating airflow and maximizing natural light intake into the room.
The manufacturer holds high-tech enterprise status, owns 6 patents and 9 trademarks, and delivers complete turnkey capabilities covering design, manufacturing, and installation.