NNG Steel Group | Premium Tool Steel, Alloy Steel & Mold Base Solutions

About NNG Steel Group

NNG Steel Group, formerly known as Ningshing Precision Machinery, has established two core business divisions: Intelligent Precision Manufacturing and Special Steel Trade. We have built an integrated business model that combines precision manufacturing, parts processing, vacuum heat treatment, intelligent equipment, wholesale trade, distribution retail, international trade, and technical services.

Our mission is to deliver high-performance steel solutions that meet the evolving demands of modern manufacturing across automotive, aerospace, electronics, and industrial machinery sectors.

Our Capabilities

Precision Manufacturing

Advanced machining and finishing of mold bases, polished plates, and metal components with tight tolerances.

Vacuum Heat Treatment

Equipped with German IPSEN high-pressure vacuum furnaces and pit tempering systems for superior material performance.

Technical Services

Comprehensive warehouse inspection, quality assurance, and after-sales support for all steel products.

Global Trade

International distribution network serving clients in Europe, North America, Southeast Asia, and beyond.

Our Product Range

We offer a comprehensive portfolio of high-performance steels and precision components engineered for durability, precision, and reliability.

Cold Work Steel

High wear resistance and dimensional stability for stamping, blanking, and forming tools.

High hardness (HRC 58-64)
Excellent toughness
Low distortion during heat treatment

Hot Work Steel

Optimized for high-temperature applications such as die casting and forging dies.

Thermal fatigue resistance
Good machinability
High hot hardness

Plastic Mold Steel

High polishability and corrosion resistance for injection molds and extrusion dies.

Mirror finish capability
Uniform microstructure
Pre-hardened or through-hardened options

Mold Base / Frame

Precision-machined standard and custom mold bases for all major mold systems.

ISO & HASCO standards
Tolerance: ±0.005mm
Surface finish: Ra 0.4μm

Alloy Steel

High-strength alloy steels for shafts, gears, and structural components.

Cr-Mo, Ni-Cr-Mo variants
Quenched & tempered
Custom heat treatment available

Carbon Steel

Reliable performance for general engineering and structural applications.

SAE 1045, 1050, 1060
Annealed or as-rolled
Machinable & weldable

KIND&CO Steel

Premium branded steel series with enhanced consistency and performance.

Strict quality control
Traceable material certs
Global certification compliance

P-Plate

Precision ground plates for jigs, fixtures, and machine components.

Flatness: 0.01mm/m
Parallelism: ±0.005mm
Material: S50C, SCM440

Circular Sawing Machine

High-efficiency cutting equipment for bar stock and profiles.

6-meter ultra-long travel
CNC controlled precision
High-speed milling integration

Mould Base Components

Complete mold system solutions including guide pillars, bushings, and ejector systems.

Standard & custom designs
Hardened & ground surfaces
Corrosion-resistant coatings

Our Services

From raw material sourcing to finished component delivery, we provide end-to-end solutions that ensure quality, precision, and efficiency.

Precision Manufacturing

We offer full-service precision machining of mold bases, polished plates, and custom metal components. Our capabilities include CNC milling, grinding, drilling, and EDM.

Tolerance: ±0.005mm
Surface finish: Ra 0.2–0.8μm
ISO 9001 certified processes

Vacuum Heat Treatment

Our advanced heat treatment facility features German IPSEN high-pressure vacuum furnaces and pit tempering systems for distortion-free hardening.

Vacuum hardening up to 1350°C
Quenching pressure: 10–20 bar
Full process documentation

Technical Services

We provide comprehensive technical support including material selection, failure analysis, warehouse inspection, and after-sales quality management.

On-site technical consultation
Quality audits & certifications
Global logistics coordination

Latest News

Stay updated with our latest exhibitions, innovations, and industry milestones.

October 28, 2025

Ningshing Precision Takes Center Stage at DMP Expo!

We showcased our latest innovations in precision mold bases and vacuum heat-treated tool steels at Asia's premier manufacturing exhibition.

August 22, 2025

Join us at EMO HANNOVER 2025

Visit us at the world's leading trade fair for production technology. Discover our intelligent manufacturing solutions.

Learn More →

August 11, 2025

World's First 6-Meter Ultra-Long-Travel Sawing & Milling Center

Revolutionizing long-part processing with unmatched precision and efficiency.

Discover →

Get in Touch

Reach out to our team for product inquiries, technical support, or partnership opportunities.

Contact Information

info@nngsteel.com
+86 574 55711809
+86 574 55711551
WeChat: ellewanlin
Skype: ellewanlin001

Representative

Name: Elle Wang

Position: General Manager of Overseas Market

Location: 25 Hongxiang Road, Ningbo 315033, China

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