Lean production, develop advanced cold Pipe Welding equipment

Zhongqing mainly engaged in manufacturing various series ERW tubemill, high precision cold roll forming lines, and high speed coil sheet slitting & cut-to-length lines

Lean production, development of cold-formed welded pipe equipment

Zhongqing mainly engaged in manufacturing various series ERW tubemill, high precision cold roll forming lines, and high speed coil sheet slitting & cut-to-length lines

Lean production, development of cold-formed welded pipe equipment

Zhongqing mainly engaged in manufacturing various series ERW tubemill, high precision cold roll forming lines, and high speed coil sheet slitting & cut-to-length lines

SINCE 1998

Lean production,develop advanced cold Pipe Welding equipment


Nanqing Group, an enterprise directly under the central government with a history of more than 30 years, was promoted to a large national first-class enterprise in 1999, and was listed in the ranks of 500 machinery industry enterprises in the country by the National Bureau of Statistics, ranking 234. The factory's ISO9001 quality system officially passed the audit and certification of China Light Industry Quality Certification Center in May 2007. It is one of the enterprises in the domestic welded pipe industry that passed the ISO9001 quality system verification. In 2001, it passed the 2000 edition of the international SGS quality certification organization's renewal audit and certification. The factory has fixed assets of nearly 100 million yuan, annual output value of 1 billion yuan, with product development, manufacturing, technical services and other comprehensive strength.

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1998 Year

Establish in

17 Item

Utility model patent

10 Billion

Annual output value

1000 +

Service customers

Products

Products

Zhongqing mainly engaged in manufacturing various series ERW tubemill, high precision cold roll forming lines, and high speed coil sheet slitting & cut-to-length lines

Customer Stories

Customer Case

Zhongqing mainly engaged in manufacturing various series ERW tubemill, high precision cold roll forming lines, and high speed coil sheet slitting & cut-to-length lines

Customer Stories

Customer Case

Zhongqing mainly engaged in manufacturing various series ERW tubemill, high precision cold roll forming lines, and high speed coil sheet slitting & cut-to-length lines

Advantage

Lean production, develop advanced cold Pipe Welding equipment

Zhongqing mainly engaged in manufacturing various series ERW tubemill, high precision cold roll forming lines, and high speed coil sheet slitting & cut-to-length lines

Ideal

Always move forward with a dream. Lose the ideal, will not produce creation and construction.

Trust

To get trust often rest assured. Integrity comes from the spirit of honesty and dedication.

The Power of Constant Progress

Zhongqing Company mainly produces various series of ERW straight seam welded pipe units, precision cold bending forming units, roll plate vertical and horizontal shear units, etc.

Courage

Always have the courage to do it. The power of implementation arises from the confrontation with the contradiction and the overcoming of it.

R & D

The factory has imported processing center and the central constant temperature processing workshop, has more than 60 large precision processing equipment, and has a national secondary measurement unit testing center.

Customer first, considerate service

Our staff will contact you within 24 hours (working days), if you need other services, please call the service hotline!

News Center

News

Zhongqing mainly engaged in manufacturing various series ERW tubemill, high precision cold roll forming lines, and high speed coil sheet slitting & cut-to-length lines

2023 Nanjing Zhongqing Management Conference


On January 2, 2024, the first working day in the New Year, Nanjing Zhongqing held its annual management meeting for the year 2023, which was mainly attended by management, finance and design departments.

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Type of welded pipe unit


There are many types of welded pipe units. Choosing the appropriate model and degree of automation according to the production environment and welding pipeline can effectively improve the quality and efficiency of pipeline welding.

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What does ERW welded pipe unit mean, is it the same as high frequency longitudinal welded pipe unit?


Straight seam high frequency resistance welded steel pipe and high frequency straight seam welded pipe is a kind of production welding process steel pipe, high frequency straight seam welded pipe is a kind of abbreviation, these two kinds of said are ERW steel pipe. "ERW steel pipe" is a high-frequency straight seam resistance welded pipe. The English Electric Resistance Welding, abbreviated as ERW, and ERW pipe is a "high-frequency resistance welded steel pipe". The welding process is different from that of ordinary welded pipe. The weld is formed by melting the base material of the steel strip body, and the mechanical strength is better than that of ordinary welded pipe. ERW means resistance welding. Resistance welding has the characteristics of high production efficiency, low cost, material saving, and easy automation. Therefore, it is widely used in aviation, aerospace, energy, electronics, automobiles, light industry and other industrial sectors. It is one of the important welding processes. one.

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