Shandong Changyi Door and Window Engineering Co., Ltd. is a professional manufacturer specializing in the design, production, and customization of high-performance doors and windows for global construction projects. Our main products include aluminum alloy doors & windows, vinyl doors & windows, steel and wooden fire-rated doors, and interior wooden doors.
All products are manufactured in our standardized in-house workshop with advanced facilities and strict quality inspection. We support bulk orders and project-based customization for residential, commercial, and industrial applications.
Our products are certified with CE, ISO, UL, CSA, NFRC, RoHS, and Energy Star, ensuring safety, durability, structural stability, and energy efficiency. We implement full-process quality control from raw material sourcing to final packaging.
With stable production capacity, reliable lead times, and cost-effective solutions, we are committed to providing safe, energy-efficient products that meet diverse international construction requirements and serving as a trusted Chinese supplier for global clients.
Number of employees
Floorspace
R&D experience
Machinery
Number of Customers
20
Years of Experience
At the core of our company's innovation lies our proficient technical team. Comprising 6 highly trained technicians, they are the creative minds responsible for meticulous drawing work and innovative design, ensuring our window and door products stand out in the market.
Maintaining the quality standards is of paramount importance to us. We have a dedicated team of quality controllers and state-of-the-art equipment to ensure that our products are of the finest quality.
We have a dedicated production facility equipped with 60 professional machines, all of which are of the world's top quality. These machines are calibrated accurately and undergo regular maintenance to ensure efficient and high-quality production.
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