Ningbo Jiulong Machinery Manufacturing Co., Ltd (NJMM) brings over 30 years of specialized expertise in steel grating and stair tread design. As a drafting member of the YB/T4001 industry standard, our technical authority is unparalleled.
Operating from 2 massive production bases with 12 automatic welding lines, we deliver 50,000+ metric tons annually, ensuring we meet wholesale demands for global infrastructure projects.
With a presence in South America, Europe, Oceania, and the Middle East, our logistics network guarantees fast delivery of high-quality industrial stair treads to any corner of the world.
Ningbo Jiulong Machinery Manufacturing Co., Ltd (NJMM) was founded in 1993. We are a modern comprehensive enterprise integrating scientific research, design, machinery manufacturing, and engineering construction. Our focus is on steel grating, railings, and platforms that withstand the harshest industrial environments.
Our commitment to quality is backed by ISO9001, ISO45001, ISO14001, and CE certifications. We don't just supply products; we provide engineering service and support, including detailed installation drawings and bespoke grating solutions.
In the modern industrial landscape, China's manufacturing capability has shifted from "quantity" to "intelligent quality." Here is why top global enterprises choose NJMM.
We utilize 6 sets of automatic banding robots and laser cutting systems. This reduces human error, ensures consistent weld strength, and provides a finish that meets stringent safety codes.
Being at the heart of the steel industry, we manage the entire supply chain. This allows us to offer wholesale pricing that is significantly more competitive than Western suppliers without compromising on metallurgical standards.
As a certified "Green Factory," we focus on sustainable hot-dip galvanizing processes that minimize environmental impact while maximizing the anti-corrosion life of our products.
Highly corrosive environments require JT series treads with thick hot-dip galvanization. Ventilation and anti-skid properties are critical for worker safety in these zones.
For high-load scenarios like mining shafts and power plants, our heavy-duty steel gratings (G505 to JG1008 series) provide the ultimate structural integrity.
Warehousing and transportation hubs utilize our stair treads for mezzanine floors and loading docks, focusing on fast installation and maintenance-free durability.
| Feature | JT1 - JT4 Series | JT5 - JT8 Series |
|---|---|---|
| Installation Type | Welded Fixation | Bolted Installation (Side Plates) |
| Safety Nosing | Plain or Patterned Plate | Anti-skid Strip Nosing |
| Best Use Case | Permanent Platforms | Removable/Adjustable Stairs |
Top-tier EPC (Engineering, Procurement, and Construction) firms prioritize suppliers who can offer:
✅ Full Traceability of raw materials (MTC certificates).
✅ Third-party inspection readiness (SGS, BV).
✅ Compliance with local standards (ASTM, BS, AS/NZS).
✅ Just-in-Time (JIT) delivery for large-scale projects.
Jiulong
