ABOUT US
Steel Door Manufacturer Trusted Since 1987
From a local factory in Henan Province to a globally recognized steel door supplier — here is our story of craftsmanship, innovation and commitment to quality.
Our Story
Built on 39 Years of Steel Door Expertise
Shanghai JinHong Materials Co., Ltd. is the designated international export division of Henan Great Wall Door Industry Co., Ltd., focusing on global sales and service of high-quality door products.
Leveraging the powerful manufacturing capacity, mature R&D system and strict quality system of our parent company, we provide safe, durable and cost-effective door solutions to clients in Southeast Asia,Central Asia, Middle East,Africa and South America.
Our Parent Factory
Henan Great Wall Door Industry Co., Ltd. was founded in 1987, located in Zhoukou, Henan Province, China.We are a leading full-category door manufacturer integrating design, R&D, production, sales and service,with over 200000 square meters production arearo, 6 advanced production lines, more than 1000 employees ,with an annual production capacity of up to 1 million doors.Backed by 60+ patents, ISO9001:2015 and mandatory fire-product certification, we implement full-process quality control.Our products are widely used in government projects, residential buildings, industrial factories, commercial buildings, hotels and apartments.
Manufacturing Capability
World-Class Production Infrastructure, In-House
Our 600-mu production base houses advanced stamping, welding, spraying and assembly lines specifically designed for high-volume, high-precision steel door manufacturing. Every production stage is conducted in-house — from raw material processing to finished product inspection — ensuring total quality control with no outsourcing.
With 6 branch factories operating simultaneously, we maintain the capacity to fulfill both large-scale project orders and customized small-batch requirements. Our production lines are capable of manufacturing over 1,000,000 doors per year under full operating capacity, with flexible scheduling to meet urgent delivery timelines.
- Advanced Stamping & Automated Welding Lines
- Full Electrostatic Powder Coating System
- High-Volume Order Fulfillment Capability
- 100% In-House Quality Inspection Before Shipment
- OEM & ODM Custom Production Supported
R&D & Innovation
Innovation Is Built Into Every Door We Make
As a National High-Tech Enterprise with a recognized postdoctoral innovation base, research and development is not an afterthought at Great Wall Door Industry — it is our foundation. Our dedicated R&D team continuously works on advancing materials, structural performance, surface treatment and locking mechanisms.
To date, we have been granted 78 patents covering product design, manufacturing processes and technical innovations. These patents reflect our ongoing investment in delivering doors that are not just functional, but ahead of industry standards in terms of security, durability and aesthetics.
- Postdoctoral Innovation Research Base
- 78 Granted Patents Across Design & Process
- Continuous Material & Structure R&D
- Advanced Anti-Theft & Fire Safety Technology
- Eco-Friendly Surface Treatment Development
Certifications & Standards
Quality You Can Verify
Every certificate we hold represents a rigorous evaluation process and an ongoing commitment to maintaining the standards that global buyers and project developers rely on.
Our Core Values
What Drives Everything We Do
Craftsmanship
We take pride in every door that leaves our factory. Precision manufacturing and attention to detail are non-negotiable standards, not optional extras.
Innovation
With 78 patents and a dedicated R&D team, we continuously push the boundaries of what steel doors can achieve in performance, design and safety.
Reliability
Our clients trust us for consistent quality across every order. Whether it's 10 doors or 10,000, our standards never change.
Partnership
We build long-term relationships, not one-time transactions. Our professional export team is with you from inquiry to delivery and beyond.
Global Perspective
With exports to 30+ countries, we understand diverse market requirements and deliver solutions that meet local standards and preferences.
Responsibility
We are committed to responsible manufacturing — using eco-conscious surface treatments and sustainable production practices across all our facilities.
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