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High-strength, durable press-welded steel grating for industrial, architectural, and construction applications. Manufactured with precision by NJMM – ISO9001 & CE Certified.
Explore ProductsNingbo Jiulong Machinery Manufacturing Co., Ltd (NJMM) is a renowned company specializing in the production of press-welded steel grating in China. Founded in 1992, NJMM has been committed to delivering high-quality solutions to clients worldwide.
Our unique selling proposition lies in our ability to oversee the entire production process — from bearing bar to the finished product of galvanized steel grating. We also provide expert sales and consultation services to help clients make informed decisions.
Learn More on Official SiteExplore our wide range of high-quality steel grating products designed for durability, safety, and performance across industrial, commercial, and architectural applications.
Untreated black steel grating ideal for walkways and platforms requiring high load capacity.
Serrated surface for enhanced slip resistance; perfect for wet or oily environments.
Durable steel stair tread with anti-slip surface, suitable for industrial stairs and access points.
Complete railing systems for staircases, walkways, and platforms. Factory-direct quality.
High-strength composite grating combining steel and other materials for extreme durability.
Robust trench cover designed for drainage systems in industrial and urban infrastructure.
Economical untreated steel grating for general-purpose industrial flooring and platforms.
Heavy-duty trench cover ideal for roadways, parking lots, and industrial drainage systems.
Extra heavy-duty grating for extreme load conditions in industrial and infrastructure projects.
Industrial-grade steel stair tread with serrated edge for maximum safety in hazardous areas.
Smooth-surface galvanized grating ideal for clean environments and light industrial use.
Industrial fencing solutions using steel grating panels for security and durability.
Modern manufacturing facility ensuring high-volume production and quality control.
Compliant with international standards for safety and quality assurance.
Certified quality management systems for consistent product excellence.
Trusted by clients in multiple countries with seamless logistics and support.
We produce press-welded steel grating including black steel, galvanized, stainless steel, compound grating, stair treads, trench covers, and custom fabricated panels.
Yes, we hold CE, ISO9001, and ISO13485 certifications, ensuring our products meet international quality and safety standards.
Absolutely. We offer OEM and ODM services and can manufacture grating panels to your exact specifications and drawings.
Typical lead time is 15–30 days depending on order volume and customization. We provide updates throughout production and shipping.
For inquiries, quotes, or technical support, visit our official website to contact the NJMM team directly.
0086-574-86533805
Jiulong Lake Industrial Zone, Zhenhai District, Ningbo City, Zhejiang, China
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