We provide customers with professional and rigorous
product testing, goods inspection, arbitration inspection, failure analysis
and other social third-party impartial testing and measurement and calibration services, and organize talent training, professional technical consulting and business guidance.

We provide customers with professional and rigorous
product testing, goods inspection, arbitration inspection, failure analysis
and other social third-party impartial testing and measurement and calibration services, and organize talent training, professional technical consulting and business guidance.

SERVICE ITEMS

Product Detection

Popular Item Detection

More Testing Items

Connection pair test

Sealing washer inspection

Material inspection

Tightening axial force/torque test

Anti-slip coefficient test

Lateral vibration test

Spark direct-reading spectral analysis

Inductively coupled plasma atomic emission text

Carbon-sulfur analysis

Organizational observation/rating/phase content

Grain size/non-metallic inclusions

Macroscopic low-magnification/ metal flow lines

Magnetic particle inspection

Complete dimensional measurement

Length （Caliper / Micrometer / Indicator Gauge）

Hardness（Lo/Bo/Vickers hardness tester）

ABOUT US

Ningbo Zhongji Mechanical Parts Inspection Co., Ltd. was established in 2008 in Jiulonghu Fastener Industrial Zone, Zhenhai District, Ningbo City. It is controlled by Zhongji Productivity Promotion Center Co., Ltd. under China Academy of Mechanical Science Group and invested by Ningbo Xiongzhen Group Investment Co.

2008
year

Establishment time

2400
㎡

Production base

300
+

Partner

10
+

Product patent

APPLICATION FIELD

Machinery Manufacturing

Building & Bridges

Nuclear Power Industry

Wind Power Industry

Shipbuilding Manufacturing

Automobile Manufacturing

Machinery Manufacturing

We offer dimensional measurement, material performance and other inspections, ensuring the quality of components and enhancing production efficiency with high-precision equipment and a professional team.

Building & Bridges

Focusing on steel structure inspection, we ensure the safety and durability of buildings with non-destructive technology and reduce long-term maintenance costs.

Nuclear Power Industry

Conduct nuclear-grade component and pressure vessel inspections, strictly follow safety regulations, and support the safe operation of nuclear facilities with certification qualifications.

Wind Power Industry

Carry out key component inspection, relying on environmental adaptability testing and rapid response to facilitate the reliable operation and extended service life of equipment.

Shipbuilding Manufacturing

We offer hull welding, component inspection and other services, and ensure the safety and compliance of ship construction through Marine environment simulation tests.

Automobile Manufacturing

Covering the inspection of engine components, chassis, etc., through automated processes and close collaboration, it helps improve vehicle performance and meet safety standards.

OUR PARTNERS

HONORS & QUALIFICATIONS

NEWS CENTER

Ningbo Zhongji carried out fire safety training and theme party day activities to strengthen the safety defense line and keep the original aspiration

To further enhance the fire safety awareness and emergency response capabilities of employees...

2026/04/02

A specialized training course on fastener inspection was successfully held

On October 23rd, our company, in collaboration with the Zhenhai District Fastener Industry Association, the New Era Industrial Workers' "Fastener" Craftsmanship College...

2026 "Done Right Away"

The greatest truths are the simplest, and hard work is the key. The 1990s，When Comrade Xi Jinping was working in Fujian, he advocated the practice of the working spirit of ...

Ningbo Zhongji carried out fire safety training and theme party day activities to strengthen the safety defense line and keep the original aspiration

To further enhance the fire safety awareness and emergency response capabilities of employees...