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About Us

Premium Industrial Grating Manufacturer Since 2016
Founded in 2016 and located in Ningbo, China, Ningbo Zhongzheng Steel Grating Co., Ltd. is a premier, full-scale manufacturer specializing in high-performance grating solutions. Driven by engineering excellence and strict quality control, we deliver reliable, custom-engineered structural products for diverse industrial applications worldwide.
 
Our Core Capabilities by the Numbers
  • Established: 2016
  • Facility Scale: Over 3,000 m² of advanced manufacturing factory area
  • Annual Capacity: Exceeding 7,000 Tons of premium grating products
  • Global Footprint: Exporting to 20+ Countries (including USA, Italy, Germany, Australia, UK, Singapore, Malaysia, Iraq etc.)
  • Project Proven: Dozens of successful structural projects completed globally
  • Production Line: Fully equipped, independent, and complete production lines & machinery
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Years Industry Experience
 
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Advanced Manufacturing Workshop
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Annual Capacity
 
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Our Products Are Sold Worldwide
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ISO9001 Certified
 
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Custom Solutions
 
Certified Quality & Trust
We operate under the highest international standards, ensuring peace of mind for global contractors and engineering firms:
 
  • International Standards: Fully certified with ISO 9001, ISO 14001, and ISO 45001
  • Compliance: CE Certified products for international markets
  • Energy Management System: Fully certified with ISO 50001 for sustainable growth
  • Transparency: Third-Party Inspection Reports Available upon request

Looking for a scalable, certified grating supplier? Contact Ningbo Zhongzheng today to power your next project.

Inspection Equipment

Our quality inspection is supported by precision measuring instruments to ensure all steel grating products meet design and industry standards.
Tape Measure: Used to measure the overall length and width of steel gratings, ensuring compliance with design requirements.
Vernier Caliper: Used to accurately measure the dimensions of bearing bars, cross bars, and spacing of steel gratings.
Micrometer: Used to measure the thickness of bearing bars at critical points, ensuring the required load-bearing capacity and structural stability.
 
 
Zinc Coating Thickness Gauge: Used to inspect the thickness of the galvanized coating, ensuring corrosion resistance meets the required standards.
 
 

Quality Control Team

Our QC team consists of experienced inspectors responsible for incoming material inspection, in-process control, and final product inspection before shipment.

Key Responsibilities:
  • Raw material inspection and specification verification
  • In-process quality control
  • Final product inspection before shipment
Handling and verification of non-conforming products

Inspection Process

We implement a strict inspection process from raw material to finished goods to ensure every steel grating meets customer requirements.

Customer Feedback

  • Thank you for your past support for your on time delivery and timely response. We hope to have need of super duplex soon and you are on our main supplier list for any upcoming projects. Thank You again. Keep in touch.Singapore
  • As a North American client it has been my pleasure to have had the opportunity to work with Sally and the team at Zhongzheng Steel Grating on a custom project for a high end residential build.
    The team approach between client and manufacture was transparent, open and very professional ensuring that manufacturing parameters were met within design tolerances.
    Delivery of product was on budget and on time with follow up made to ensure client satisfaction by Sally and manufacturing team.
    Zhongzheng Steel Grating is a world class manufacturer and are highly recommended.Canada
  • Ningbo Zhongzheng Steel Grating Co., Ltd. is reliable, honest and operates with integrity. Communication is fast and efficient, as they are very responsive to product inquiry.
    Their product quality has always exceeded our expectation, production time frame is very efficient, and cost effective.
    Highly recommended for galvanised requirements.Fiji
  • The quality of the stainless steel grates is excellent, and the entire team was professional, responsive, and spoke great English. Communication was smooth throughout the entire process, and their knowledge, craftsmanship, and attention to detail really stood out. A trustworthy company with great expertise and genuine commitment to their customers—I highly recommend them. ​​​​​​​Belguim
  • Working with Ningbo Zhongzheng Steel Grating has been an excellent experience from start to finish.
    Communication in English is clear, fast, and always professional. Quotations and replies are consistently delivered with impressive speed, and their attention to detail shows real commitment to quality.
    The products arrived exactly as specified and fully met our expectations.
    Delivery was completed within the required timeframe, even during the challenging period around Chinese New Year, thanks to their strong dedication and willingness to work overtime to support our schedule.
    A reliable, efficient, and customer‑focused partner. Highly recommended for any company looking for quality products and smooth cooperation.
    I also personally appreciate their friendly way to manage business and it is always a pleasant experience to meet them in Ningbo.​​​​​​​Italy
  • We are extremely satisfied with the products and service provided by Ningbo Zhongzheng Steel Grating Co., Ltd. The team was attentive, cooperative, and committed to delivering high standards from start to finish.
    Their efficient project management, reliable delivery, and excellent workmanship have made them a trusted partner for our business. We look forward to working together again in the future.
    Strongly recommended for anyone looking for quality steel grating products and professional support.​​​​​​​Singapore
Premium Industrial Grating Manufacturer Since 2016
 

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 manager@cnsteelgrating.com
 +86 13616561696
 +86 13616561696
 Room 135, Floor 1, Building 2, No.2, Danshuihong road, Binhai Economic Development Zone, Cixi, Zhejiang(One License, Multiple Addresses)
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