Dingshang (Heilongjiang) Energy-Saving Doors and Windows Technology Co., Ltd. is an enterprise specializing in the R&D, design, production, and sales of doors, windows, and curtain walls. Since its establishment in 1996, the company has adhered to the development philosophy of "people-oriented and technology-first," introduced modern aluminum-magnesium alloy door production technology, continuously trained professional technical personnel, and gradually established a comprehensive brand image with complete categories, advanced functions, and stable quality. Its products are suitable for various venues, including enterprises, institutions, residential buildings, commercial properties, government offices, hotels, banks, and more.

Over the years, the company has independently developed, designed, and produced a wide range of products across multiple series: swing door series, automatic smooth door series, revolving door series, folding door series, curtain wall series, and thermal-insulated energy-saving window series.

The company is located on the auxiliary road of Daguang Expressway in Longfeng District, Daqing City, Heilongjiang Province, covering a site area of 3,711 square meters and a building area of 2,225 square meters. Since 2018, the company has successively obtained multiple certifications, including the Quality Management System Certification, Product Patent Certificate, Contract Fulfillment and Creditworthiness Certificate, Five-Star After-Sales Service Certificate, AAA-Level Quality Service Integrity Enterprise, Domestic Independent Innovation Brand, Green Promotion Product, and Domestic Energy-Saving Building Material Technology Product.

Adhering to technological innovation is the long-term development philosophy consistently upheld by Dingsun. The company is dedicated to independent R&D, continuously crafting high-quality products tailored to market demands. Upholding the service philosophy of "people-oriented and customized," Dingsun strives to create modern and elegant facade effects for various buildings through its door and window products.