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Stainless Steel Production

GNH Steel – Precision Stainless Steel Strips

Trusted CSP stainless steel manufacturer since 2000. Specializing in SUS 301 and SUS 304 series hardened precision cold-rolled stainless steel strips with thicknesses from 0.1mm to 2.0mm.

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About GNH Steel

GUANHUI HARDWARE CO., LIMITED is a professional CSP stainless steel manufacturer established in 2000, specializing in the research, development, production, and sales of high-precision hardened stainless steel strips.

20+
Years of R&D & Production Experience
3,000
MT Monthly Production Capacity
200+
Skilled Employees
100%
Products Meet International Standards
10,000+
m² Production Workshop

Advanced Production Capabilities

We operate four rolling mills, including two 20-high models equipped with the latest AGC system and two 23-roll precision models. Our production line includes five bright annealing furnaces and three tension leveling machines, ensuring consistent quality and precision across all batches.

With a strong market reputation in the hardened precision steel strip industry, our products are exported worldwide—especially to Eurasian countries and regions—serving top-tier manufacturers in electronics, appliances, and industrial equipment.

Our Products

High-precision cold-rolled stainless steel strips including SUS 301 and SUS 304 series. We offer customization services for rust resistance, strength, surface finish, and processing performance.

SUS 301 (CSP)

  • Thickness: 0.1 - 1.0 mm
  • Temper: 1/2H, 3/4H, H, EH
  • HV Hardness: 170 - 600
  • Packing: Standard export package
Customization Available

SUS 304 (CSP)

  • Thickness: 0.1 - 1.2 mm
  • Temper: 1/2H, 3/4H, H
  • HV Hardness: 170 - 600
  • Packing: Standard export package
Customization Available

High-Strength CSP Strip

  • Material: SUS 301 EH Grade
  • Thickness: 0.15 - 0.8 mm
  • HV: 500 - 600
  • Application: Springs, connectors
High Durability

Mirror Finish CSP 304

  • Surface: BA / Bright Annealed
  • Thickness: 0.2 - 1.0 mm
  • Temper: 1/2H, H
  • Finish: High gloss, reflective
Premium Finish

Corrosion-Resistant Strip

  • Material: SUS 304 CSP
  • Thickness: 0.3 - 1.2 mm
  • Features: Enhanced salt spray resistance
  • Use Case: Marine, medical devices
High Resistance

Ultra-Thin CSP 301

  • Thickness: 0.1 - 0.3 mm
  • Temper: 3/4H, H
  • HV: 350 - 500
  • Application: Electronics, sensors
Precision Thin Gauge

Custom Hardened Strip

  • Service: Full customization
  • Options: Strength, temper, width
  • Support: R&D collaboration
  • MOQ: Flexible based on specs
Made-to-Order

Wide Format CSP 304

  • Width: Up to 600 mm
  • Thickness: 0.5 - 1.2 mm
  • Temper: 1/2H, H
  • Use: Appliance panels, enclosures
Wide Width Option

Why Choose GNH Steel?

Our advanced technology, strict quality control, and global supply chain make us a trusted partner for precision stainless steel solutions.

Advanced Equipment

20-high rolling mills with AGC, 23-roll precision models, bright annealing furnaces, and tension leveling machines ensure top-tier consistency.

Quality Assurance

100% of our products meet international standards. Strict process control from raw material to final packaging.

Global Export

Products exported worldwide, with strong presence in Eurasian markets and long-term partnerships with leading brands.

Customization Service

Tailored solutions for strength, corrosion resistance, surface finish, and mechanical properties to meet your exact needs.

Our Production Process

1

Reconditioning

Raw material inspection and surface preparation to ensure uniformity and quality.

2

Rolling

Precision cold rolling using advanced 20-high and 23-roll mills for dimensional accuracy.

3

Bright Annealing

Heat treatment in controlled atmosphere to enhance ductility and surface finish.

4

Tension Leveling

Eliminates internal stress and ensures flatness and uniform mechanical properties.

5

Winding & Packing

Final inspection, precision winding, and standard export packaging for safe global delivery.

Applications of Our Steel Strips

Our precision stainless steel strips are used across diverse industries requiring high strength, corrosion resistance, and dimensional accuracy.

Electronic Parts

Used in relays, connectors, LCD frames, backlight panels, and other precision electronic components requiring high reliability.

Mobile Phone Parts

Ideal for phone shields, stainless steel logos, and internal structural components with high brightness and durability.

Household Appliances

Supplied to leading brands for washing machines, dishwashers, stoves, sinks, and disinfection cabinets.

Computer Peripherals

Used in monitor frames, computer accessories, and internal brackets requiring precision and stability.

Daily Supplies

Applied in stainless steel tableware, tools, springs, and other consumer goods requiring long-term durability.

Medical & Chemical Equipment

Used in tweezers, needles, and lab equipment due to high corrosion resistance and clean surface finish.

Get in Touch

For inquiries, quotes, or customization requests, reach out to us directly.

Contact Information

Representative: Irene Kong
Phone: 15800074780
Company: GUANHUI HARDWARE CO., LIMITED
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