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PRODUCT ASSURANCE
PRODUCT ASSURANCE

Our confidence comes from our technology and services

Redefine your expectations for door and window accessory service providers

R&D PHILOSOPHY

Mingdun is committed to leading the research and innovation process of mainstream door and window systems in China and the world. We have researched and explored solutions that are suitable for the global north-south latitude of 35 °

A scientific theory on the characteristics of climate zones and a wider range of door and window ecosystems. Establish a special research group to develop and innovate door and window systems that are more suitable for different climate conditions in different regions

To meet product demands and deeply explore the future development trends and various possibilities of doors and windows.


Precision production process

In order to continuously output high-quality products and solutions in the industry, we have independently developed an automated machine for corner code cutting, drilling, and tapping, with an accuracy tolerance of less than 10 threads. We have more than ten injection molding machines of different tonnage and precision injection molds developed and manufactured, which can produce high standard plastic parts of different plastic materials. We have an ultra long automated rubber strip production line and precision rubber strip extrusion mold research and manufacturing. Currently, we have provided over a hundred high standard rubber strip products for cooperative enterprises to use.

Strict quality requirements

We have strict high standard requirements for product raw material selection, product structural design, mold research and development, finished product production, and testing and inspection, ensuring that high standard products are delivered to every cooperating enterprise before leaving the factory.

Rigorous product testing experiments
We independently build a laboratory for component or finished product inspection, simulating various load-bearing pressures and climate conditions, and conducting tests on our products in actual usage scenarios, which can more directly detect problems and timely avoid corrections. Ensure the high quality of the product before leaving the factory.
Strict control over raw materials

In terms of technology, the door and window hardware industry is the first to apply independently formulated oxidation processes, and has always maintained a leading position in oxidation processes. At the same time, we have R&D and supply chain support for the surface technology processes of all hardware and resin materials, including oxidation, spraying, electrophoresis, electroplating, fluorocarbon, PVD vacuum coating, optical coating, nanomaterials, graphene materials, etc.

TECHNICAL SUPPORT SERVICES
Pre-sale
Pre-sale

A professional and efficient service team, providing timely, complete, and accurate answers to various customer and user inquiries.

In sales service
In sales service

Provide configuration plans and assembly drawings, and develop reasonable, high-quality, and feasible solutions based on customer needs.

After-sale service
After-sale service

Provide after-sales services such as product installation technical guidance, on-site debugging and resolution of technical difficulties, and regular new product training to safeguard the interests of customers.

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