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Tianjin Yuantai Derun Pipe Manufacturing Group Co., Ltd., established in March 2002, is the biggest manufacturer specializing in  ERW square&rectangular tube/pipe, hollow section structure pipe, galvanized pipe and spiral welding pipe in China. Annual output reaches 5 million tons.Yuantai Derun has 59 production lines of black ERW pipe, 10 production lines of galvanized pipe and 3 production lines of spiral welding pipe. Square pipe from 20*20*1mm to 500*500*40mm, rectangular pipe from 20*30*1.2mm to 400*600*40mm,  welded pipe from 2”—60” can be manufactured. Yuantai Derun can manufacture square rectangular pipes as per the standards of ASTM A500, JIS G3466, EN10219, DIN2240, BS1387, AS1163.

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January 1993

Key team members of Yuantai Derun group began technical job in Tianjin Daqiuzhuang tube factory.

June 2002

Tianjin Yuantai Industry & Trade Co., Ltd. was founded, specialize in square, rectangular hollow steel pipe, hot galvanized welded (hot dip galvanized) square tube, the registered capital is USD 10 million.

May 2004

One of Yuantai subsidiaries Tangshan Lituo Steel Tube Co., Ltd. was established, specialize in square rectangular straight welded hollow steel pipe, registered capital is USD 10 million.

April 2005

Yuantai Steel Square Pipe Co. Ltd. was established, specialize in square welding hollow steel tube and galvanized tube, the registered is USD 2 million.

March 2010

Tianjin Yuantai Runxiang commercial trade company was established, specialize in strip steel trade, galvanized pipe agent, etc., the registered capital is USD 2 million.

March 2010

Tianjin Yuantai Derun pipe manufacturing group Co. Ltd. was formally established, marking that the production of high-frequency welded black, galvanized square pipe, spiral welded pipe, pipe logistics and pipe trade as one of the large-scale joint enterprise Yuantai Derun group was formally established, the group registered capital is USD 20 million.

March 2010

Tianjin Yuantai Derun Investment Co., Ltd. was formally established, specialize in steel pipe industry chain,lower industry mergers and acquisitions and industrial real estate development, the registered capital is USD 2 million.

August 2013

Tianjin Derun Runfeng pipe manufacturing Co. Ltd was established, specialize in hot galvanized (hot galvanizing) processing business, the registered capital is USD 8 million.

March 2015

Tianjin Yuantai Yuanda anti-corrosion insulation pipe Co., Ltd. was established, specialize in spiral welded pipe production and sales, the registered capital is USD 2 million.

August 2015

Tangshan Yuantai Derun Pipe Co., Ltd. was established, specialize in steel strip, steel pipe trade, registered capital is USD 1 million.

March 2016

Tianjin Yuantai Derun International Trade Co., Ltd was established,mainly engaged in international import and export business for Yuantai Group, registered capital is USD 2 million.

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How to maintain and inspect the electric angle steel tower?-news-TIANJIN YUANTAI DERUN PIPE MANUFACTURING GROUP CO., LTD-
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How to maintain and inspect the electric angle steel tower?
How to maintain and inspect the electric angle steel tower?

1. Basic inspection 

The fundamental inspection is the process of checking the angle level of the steel power angle tower, anchor bolts, nuts, etc. The basic inspection primarily verifies the angle steel tower's fundamental information. Basic inspection data information must be quickly collected, compared to historical data, and evaluated. The overall characteristics must also be examined. If any problems are discovered, they must be fixed right away, and any problematic components must be replaced on a regular basis.


2. Recognizing perpendicularity 

The vertical angle of the steel tower's power angle is another important index value for inspection in addition to the fundamental examination. Following the inspection, the information must be documented and contrasted with earlier records. The electric angle steel tower's vertical angle must adhere to the rules. It is vital to identify the source of the error if it does not comply with the pertinent requirements. Put out clear justifications for your proposed realistic improvement steps, and carry out the necessary rectification work within the allotted period.


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3. Verification of manufactured parts 

There are several prefabricated components that make up the electric angle steel tower. Regular inspection of the prefabricated components is also crucial. Checking the quality of the prefabricated parts of the angle steel tower is necessary. It should be replaced on a regular basis if there are any evident signs of deformation, damage, corrosion, or unqualified components. It's also important to check for cracking or dryness where the prefabricated parts meet the tower section. In particular, lightning protection grounding and the bow should be inspected carefully because they can provide safety risks.


Electric angle steel towers require regular maintenance and inspection much like autos do. The daily maintenance of angle steel towers includes basic inspection, verticality inspection, and prefabricated component inspection. The construction of an angle steel tower is a significant undertaking, and the project budget is significant as well. In addition to ensuring the power angle steel tower's quality, which can be controlled to some extent, timely maintenance work is also required if you want to construct a cost-effective power angle steel tower. lengthen the angle steel tower's useful life.