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Jiangsu Aozheng Metal Products Co., Ltd.

Jiangsu Aozheng Metal Products Co., Ltd. is a professional industry and trade integrated enterprise, with a modern production plant covering an area of 32,000 square meters. We specialize in the R&D, production and supply of a full range of high-quality construction hardware products. Our core product portfolio includes exterior wall cladding fixing system brackets, C channels, seismic support brackets, anchor bolts, cast-in channels, concrete embedded parts and photovoltaic bracket clamps, which cater to various customized construction and engineering installation requirements. Our products are manufactured from premium raw materials including stainless steel, aluminum alloy, carbon steel and low alloy steel. Equipped with advanced industrial production technologies, we adopt automated cutting, extrusion, stamping, welding, CNC machining and laser processing craftsmanship. Strict standardized production and precise processing procedures are implemented throughout production to ensure stable, reliable and high-standard product quality. Integrating raw material forming and mechanical processing, our factory operates as a large-scale, diversified and professional manufacturing base for construction hardware. Upholding strict quality standards and high-end global market positioning, we achieve an annual production capacity of 8,000 tons of diverse building materials. Our products are widely exported to dozens of countries and regions across the globe, covering the United States, Germany, Italy, Belgium, the United Kingdom, Japan, Australia, Canada, Russia, Central Asia and the Middle East. We have established long-term, stable and strategic cooperative relationships with large construction enterprises and renowned engineering teams worldwide. Supported by superior product quality and professional all-round services, we have become a core and trusted building material supplier for our global partners in China.

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  • Opening Permit
  • Jiangsu Private Science & Technology Enterprise
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Other Stainless Steel Construction Hardware Industry knowledge

Other Stainless Steel Construction Hardware: Built for Demanding Projects

As a Other Stainless Steel Construction Hardware Manufacturers, we match product configuration to the application, operating limits, interfaces and acceptance criteria defined for each project.

Jiangsu Aozheng Metal Products Co., Ltd. is a professional manufacturer and supplier of Other Stainless Steel Construction Hardware, covering manhole covers, sinks, grids, and custom-fabricated components. Our 32,000 m² factory integrates automated cutting, stamping, welding, CNC machining, and laser processing, giving us full control over quality and lead times. With an annual capacity of 8,000 tons, we supply construction firms, engineering teams, and distributors across the US, Europe, Australia, and the Middle East.

This category addresses the functional and aesthetic hardware that completes a building—access covers, drainage elements, and utility fixtures. We produce these items in stainless steel grades suited to each environment, from pedestrian plazas to food-processing areas. Every piece is manufactured to your drawings or our engineered standards, with surface finishes that resist corrosion and maintain appearance over decades of service.

Our Product Range

We offer three core product lines under this category, each engineered for specific installation conditions:

Stainless Steel Manhole Covers

Recessed and surface-mounted covers for access to utility vaults, drainage systems, and underground services. Available in square, rectangular, and custom shapes with load ratings from pedestrian to heavy vehicle traffic.

Stainless Steel Sinks

Commercial and industrial sinks for kitchens, laboratories, and sanitary spaces. Fabricated with smooth welds and easy-to-clean surfaces, available in under-mount, top-mount, and custom configurations.

Stainless Steel Grids

Mesh and bar gratings for drainage, ventilation, and safety flooring. Designed with anti-slip surfaces and structural strength for stair treads, trench covers, and platform walkways.

Application Fit and Material Selection

Choosing the right stainless steel grade is critical for longevity. We typically work with 304 and 316L stainless steel, depending on the exposure:

  • 304 stainless steel – Suitable for interior and general exterior use where corrosion resistance and hygiene are required.
  • 316L stainless steel – Recommended for coastal, chemical, or high-chloride environments where pitting and crevice corrosion are concerns.
  • Surface finishes – Brushed, mirror-polished, or non-slip embossed, depending on the application and safety requirements.

For manhole covers, we consider traffic load classifications (e.g., EN 124 or similar standards) and provide reinforcement ribs or thicker plates to meet the specified class. Sinks are fabricated with minimum radius corners for easy cleaning, and grids are engineered with bearing bar spacing that balances open area and load capacity.

Critical Specifications and Performance

Our manufacturing process ensures dimensional accuracy and repeatability. Key parameters we control include:

Product Type Typical Specifications Common Applications
Manhole Cover Load class A15–F900, square/rectangular, recessed or flat Roads, sidewalks, plazas, utility access
Sink Gauge 18–22, single/multi-bowl, custom depth Commercial kitchens, labs, hospitals
Grid Bar spacing 10–50 mm, thickness 3–6 mm, anti-slip Drainage trenches, stair treads, platforms

We perform in-house testing on chemical composition and mechanical properties using a spectrometer and tensile tester. Dimensional checks are conducted at each stage, and finished products undergo 99.99% inspection to meet your acceptance criteria.

Customization and Engineering Support

Most of our work is custom. Our R&D team develops tooling and fabrication methods based on your drawings or samples. We can adjust:

  • Dimensions, shapes, and tolerances to fit existing openings or architectural designs.
  • Material grade and thickness to meet load or corrosion requirements.
  • Surface finish and branding (e.g., logos on manhole covers).
  • Edge profiles, locking mechanisms, and hinge systems for security or ease of access.

If you are unsure about a specification, send us the application details—we will recommend a configuration that balances performance and cost. For large projects, we can provide samples for pre-production approval.

Quality Assurance and Compliance

We operate under ISO9001 quality management and have certifications from BV, SGS, and TUV. Our factory maintains a laboratory with advanced testing equipment, and we follow standardized procedures from raw material inspection to final packaging. For each order, we can provide material certificates, test reports, and inspection documentation upon request.

We also hold several patents on construction hardware designs, reflecting our commitment to innovation. Our export experience includes projects with major construction enterprises, and we understand the documentation required for international shipping.

Installation, Maintenance, and Service

Our products are designed for straightforward installation. Manhole covers come with frames that can be cast into concrete or bolted to existing structures. Sinks are fabricated with standard mounting flanges, and grids are supplied with edge trims or anchoring points as needed. We provide installation drawings and, when required, on-site technical support.

Maintenance is minimal: regular cleaning with mild detergents preserves the finish. For high-traffic areas, we can apply a non-slip coating or embossing to enhance safety. Spare parts such as hinges, bolts, and gaskets are available for long-term serviceability.

Information We Use to Configure Your Solution

To prepare an accurate quotation and production plan, please provide the following details:

  • Product type – manhole cover, sink, grid, or other custom hardware.
  • Dimensions and quantity – overall sizes, opening sizes, and required volume.
  • Material and finish – preferred stainless steel grade and surface treatment.
  • Load or performance requirements – traffic class, static load, or slip resistance.
  • Drawings or samples – if available, to expedite tooling and production.
  • Delivery destination – for logistics planning and Incoterms.

With this information, we can offer a tailored solution that meets your project’s technical and budgetary goals.

Frequently Asked Questions

Can you manufacture manhole covers to EN 124 load classes?

Yes, we can produce covers that meet various load classes, including A15 to F900. We adjust plate thickness, ribbing, and frame design to achieve the required strength, and we can provide load test documentation if needed.

What is the minimum order quantity for custom stainless steel sinks?

For custom sizes, we typically require a minimum order of 50 pieces, but we can discuss lower quantities for sample orders or prototype development. Standard sizes may have a lower MOQ.

Do you provide anti-slip surfaces for stainless steel grids?

Yes, we offer several anti-slip options, including embossed patterns, serrated edges, and applied coatings. The choice depends on the environment and required slip resistance.

How do you ensure the quality of exported products?

We perform in-process inspections and a final 99.99% check on finished items. We can also arrange third-party inspection (e.g., SGS, TUV) before shipment if your project requires it.

Can you match a specific surface finish or color?

We can match brushed, mirror, or satin finishes, and we can apply colored coatings or powder coating if needed. For architectural projects, we can provide samples to confirm the appearance.

Related Products and Categories

Our portfolio also includes Products, Facade System Of Aluminum for applications with different operating ranges, interfaces or integration requirements.