Decoding E-E-A-T: Expert insights into manufacturing excellence, material science, and global logistics.
Modern "Wire Balloon Grating" production has shifted from manual welding to AI-integrated automatic pressure welding lines. Ningbo Jiulong Machinery (NJMM) utilizes 12 self-developed lines that ensure uniform load distribution and superior structural integrity, exceeding YB/T4001.1-2019 standards.
The core value of premium grating lies in its Hot-Dip Galvanization quality. Our process provides an average zinc coating thickness of 85 microns, ensuring a service life of 30+ years in high-salinity marine environments and acidic petrochemical facilities.
Procurement directors now prioritize "Green Factories." NJMM is recognized as a Green Factory with ISO 14001 certification. Our products meet CE (EU), GHOST (Russia), and ASTM (USA) criteria, facilitating seamless import for global infrastructure projects.
Founded in 1993, NJMM has evolved into a global titan in the light steel structure industry. Spanning over 450,000 square meters, our two massive production bases in East and North China serve as the backbone for high-capacity steel grating manufacturing.
We are not just a supplier; we are an engineering partner. Our capabilities include robotic welding, laser cutting, and digital control tailoring, allowing us to produce over 50,000 metric tons annually of gratings, stair treads, and handrails.
Vision: To be the leader in the steel grating market, the preferred global supplier, and a responsible corporate citizen.
Mission: To provide top-quality products with global expertise, fostering a harmonious environment for employees and contributing to industrial advancement.
Located in Ningbo, NJMM leverages one of the world's busiest deep-water ports. This proximity reduces inland transit costs and transit times for shipments to South America, Europe, and Oceania.
We provide detailed shop drawings (CAD/BIM compatible) to ensure that custom "Wire Balloon Gratings" fit perfectly on-site, reducing field modification costs by up to 25%.
By producing 50,000 tons annually, we offer competitive "Wholesale" pricing that smaller regional factories cannot match, without compromising on ISO 9001:2015 quality controls.
Versatility across heavy and light industrial sectors.
Recommended: JG325/30/100. High ventilation and explosion-proof properties make our gratings ideal for volatile environments.
Heavy-duty G705/30/100 gratings designed for port terminals and shipbuilding, handling high-load vehicular traffic.
From ceiling screens to drainage ditch covers, our gratings are utilized in waterworks, sewage plants, and airport engineering.
Focus on E-E-A-T: Look for established Experience (30+ years), Expertise in international standards (ISO/CE), Authority in the industry (drafting national standards), and Trustworthiness (proven track record with global partners).
The process creates a metallurgical bond between the steel and zinc. Even if the coating is scratched, the surrounding zinc acts as a sacrificial anode, preventing rust from spreading to the substrate.
Yes. With 2 specialized irregular fabrication platforms and robotic cutting systems, we can manufacture gratings to fit complex pipe intersections and circular platform designs.
Plain grating is standard for most walkways. Serrated grating (as found in our JT series) features teeth on the bearing bars for superior anti-slip performance, essential in wet or oily conditions.
Leverage our 50,000-ton capacity and global logistics network for your next infrastructure project.
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