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About

About Us

Tianjin Tenghai Technology Development Co., Ltd. is located in Shuangtang High-end Hardware Industrial Park, Jinghai District, Tianjin. The company specializes in producing various specifications of prestressed concrete strands, steel wires, and unbonded prestressed strands. 1 * 7: Φ12.7mm, Φ15.2mm, Φ17.8mm, Φ18.9mm, Φ21.6mm, 1 * 19: Φ21.8mm, Φ28.6mm.

The company introduced 6 domestic advanced automatic production lines, equipped with German Siemens PLC control system, supporting WE-100KN, WE-300KN universal testing machine, LAW-1500KN tensile testing machine, SL-700W relaxation testing machine and other advanced Testing equipment and perfect and professional testing methods can ensure that the quality of products meets domestic and foreign standards such as GB / T5224-2014, ASTM416, BS5896.

Tianjin Tenghai Technology Development Co., Ltd. is a new steel strand processing and production base in Asia.

Kehai Dong

CEO & Founder

Our Qualification

Our Mission

"Sincerity is special, and road is faith", Tianjin Tenghai Science and Technology Development Co., Ltd. casts cutting-edge quality with the spirit of craftsman, and strives to ensure the user experience. Provide the best quality products for the global prestressed steel strand customers.
Qualification

Our History

  • 2007
  • 2009
  • 2010
  • 2012
  • 2015
  • 2017
  • 2019
  • 2020

Tianjin Longheng Prestressed Steel Strand Co., Ltd., the predecessor of Tenghai, was established

April 18, 2007
Mr. Dong Kehai founded Tianjin Longheng Prestressed Steel Strand Co., Ltd., the predecessor of Tianjin Tenghai Technology Development Co., Ltd.

Longheng prestress has developed rapidly in the past two years

October 3, 2009
Tianjin Longheng Prestressed Steel Strand Co., Ltd. utilizes the national infrastructure of Dongfeng to develop rapidly.

Tianjin Tenghai Technology Development Co., Ltd. was formally established

August 10, 2010
In order to expand production scale and efficiency, Mr. Dong Kehai founded Tianjin Tenghai Technology Development Co., Ltd.

The expert team of Tenghai Technology provides solutions for suspension bridges

June 4, 2012
Mr. Dong Kehai led a team of experts from Tenghai to provide solutions for the suspension bridge project in Meishan City, Sichuan Province, China.

Tenghai Technology's expert team provides solutions for the railway

March 26, 2015
Mr. Dong Kehai led the team to provide solutions for the construction of the PNG railway in China and the Beijing-Shanghai high-speed railway.

The team of experts of Tenghai Technology provides solutions for the stadium

June 15, 2017
Tianjin Tenghai Technology Development Co., Ltd. provides stable support solutions for the famous Tianjin Water Drop Stadium.

The team of experts of Tenghai Technology provides solutions for the airport

July 13, 2019
Tianjin Tenghai Technology Development Co., Ltd. provided the design and construction plan of steel strand for Beijing Daxing Airport.

Tenghai Technology Development Co., Ltd. annual turnover exceeded 3 billion

April 20, 2020
In the past year, Tianjin Tenghai Technology Development Co., Ltd.'s annual sales have exceeded 3 billion US dollars.

Behind our success

Time
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