Founded in 1993, NJMM has evolved into a global titan in the design and fabrication of steel grating and galvanized handrail systems. With two massive production bases in East and North China, we command over 450,000 square meters of operational space.
We operate 12 fully automated steel grating welding lines, complemented by robotic welding stations and precision laser cutting technology. This AI-driven precision ensures every handrail and stanchion meets the strictest architectural tolerances.
NJMM is an ISO9001:2015, ISO45001:2018, and ISO14001:2015 certified enterprise. Our products hold CE and GHOST certifications, reflecting our commitment to global safety and environmental standards.
Annual Tonnage Output
Auto-Welding Lines
Years Industry Experience
Global Certifications
In the modern industrial era, safety infrastructure is no longer a secondary consideration but a core engineering requirement. The global market for galvanized steel handrails and pipe railings is witnessing an unprecedented CAGR, driven by massive infrastructure investments in the Middle East, Southeast Asia, and the re-industrialization of North America.
Current trends indicate a shift toward modular, pre-fabricated handrail systems. Engineering firms now prioritize products that offer a high strength-to-weight ratio and exceptional corrosion resistance. Hot-dip galvanization remains the "gold standard" because of its metallurgical bond with the steel, offering a maintenance-free lifespan of 50+ years even in harsh coastal or chemical environments.
As a leading Chinese manufacturer, NJMM leverages an integrated supply chain that offers significant Information Gain for procurement officers. Our efficiency isn't just about labor; it's about the density of the industrial ecosystem. From raw material sourcing to hot-dip galvanizing plants, the proximity reduces lead times and carbon footprints. Our automated pressure welding tech ensures 100% penetration, far exceeding manual welding quality found in smaller regional shops.
Widely utilized in petrochemical, light chemical, and refinery industries. Our recommended specifications include JG255/30/100, JG325/30/100, and JG405/30/100.
For port terminals, shipbuilding, and offshore engineering, load capacity is the critical KPI. Recommended: G505/30/100, JG705/30/100, JG806/30/100, and JG1008/30/100.
Our grid structures are designed to prevent the accumulation of water, snow, or grime, ensuring safe transit for operators in extreme weather conditions.
From agriculture to pharmaceutical manufacturing, NJMM products offer a modern aesthetic combined with rugged utility.
| Feature | Procurement Benefit |
|---|---|
| Anti-Slippery Serration | Reduces workplace accident liability |
| High Altitude Grid Design | Less windage resistance for towers & cranes |
| Material Efficiency | Saves up to 30% steel vs. solid plate flooring |
We provide full engineering services, including detailed 3D installation drawings and structural calculations. Our global expertise helps clients optimize their grating and handrail layouts to reduce waste.
In 2021, NJMM was recognized as a Green Factory. We integrate environmentally friendly galvanizing processes that align with the ESG goals of modern international corporations.
With a service network covering South America, Europe, Oceania, and the Middle East, our logistics team ensures that "Longta" brand products arrive on site, on time, with all necessary customs documentation.
Jiulong
