The global demand for perforated steel stair treads has witnessed a compound annual growth rate (CAGR) of 5.8% over the last five years. Driven by the expansion of petrochemical plants in the Middle East and the resurgence of manufacturing in Southeast Asia, these components are no longer seen as simple hardware but as critical safety infrastructure.
Modern engineering prioritizes material efficiency. Perforated treads offer a high strength-to-weight ratio, reducing the total carbon footprint of steel structures by up to 15%. NJMM's commitment to "Green Factory" status aligns with global ESG mandates, ensuring our manufacturing processes minimize waste through AI-tailored digital control.
The industry is transitioning toward "Industry 4.0". At NJMM, we utilize robot welding and laser cutting to ensure tolerances within ±0.5mm. This precision is vital for large-scale EPC projects where modular assembly requires perfect alignment of every stair tread and grating panel.
As a leading supplier, NJMM is pioneering the next generation of industrial surfaces. Our roadmap focuses on three core pillars: Material Science, Precision Geometry, and Surface Integrity.
Integration of high-strength low-alloy (HSLA) steels for extreme environments.
Advanced hot-dip galvanization techniques exceeding ISO 1461 standards for 50+ year lifespans.
Providing BIM-compatible 3D models for seamless architectural integration.
Transitioning to zero-discharge galvanizing lines to protect local ecosystems.
Embedded sensors in treads for structural health monitoring in offshore platforms.
Founded in 1993, Ningbo Jiulong Machinery Manufacturing Co., Ltd (NJMM) has established itself as the authoritative leader in the design and manufacturing of steel grating, railings, and light steel structures. Our footprint spans two massive production bases in East and North China, powered by 12 automated welding product lines.
With an annual capacity exceeding 50,000 metric tons, we serve as a one-stop hub for scientific research, machinery manufacturing, and engineering construction. Our "Longta" brand is synonymous with quality in renowned projects globally.
Our commitment to E-E-A-T is backed by: ISO9001:2015, ISO45001:2018, ISO14001:2015, and CE Certification. We didn't just follow the standards—we helped write them, participating in the 2019 revision of the YB/T4001 steel grating standard.
In environments where oil and moisture are prevalent, our perforated treads (JT1-JT8) provide superior anti-skid performance. The grid design allows for the immediate drainage of hazardous liquids, ensuring worker safety on high-altitude platforms.
The corrosive salt-mist environment of offshore rigs demands extreme durability. Our hot-dip galvanized finishes provide an electrochemical barrier that self-heals scratches, extending the service life of stair systems in the harshest climates.
From parking garages to modern airport terminals, the aesthetic "Clean Tech" look of perforated steel meets both architectural and functional requirements, providing ventilation and light transmission while maintaining high load-bearing capacity.
Jiulong
