About Us



Dingsheng pipe industry co., ltd. was established in 2008, is a high-tech enterprise in Zhejiang province. We specialized in the design and manufacture of flanges and pipe fittings according to standards ANSI, ASME, DIN, JIS, GOST, BS and ISO, and connectors for the oil & gas, power generation, and industrial markets.

Dingsheng pipe industry as one of the earliest flange manufacturer have much remarkable experience in flange production and inspection and is equipped with a complete set of equipment, including advanced cutting, forging, machining, drilling machines, and professional testing & inspection instruments. Besides, we also have a group of experienced engineers and workers.

Under the strict control system - ISO 9001 quality assurance, we demand that every single production process meet standard requirements, from material procurement to material testing, cutting, forging, machining and quality control. Our products are exported to more than 80 countries and regions with their best quality, best service, and most competitive price.

Dingsheng Pipe Industry perfectly combines high-quality materials, advanced design, strict manufacturing standards and quality assurance system. Strive to provide customers with the most competitive products. Our Company Motto is "Quality comes first, Customer is supreme", we are looking forward to cooperate with more global customers.


Production Capacity

The enterprise is equipped with large forging workshops, CNC lathes,, high-speed drilling machines, miling machines and other advanced equipment and a variety of advanced inspection and testing equipment Forming an integrated manufacturing enterprise of forgings and finished products.


Company History

◎ 08
◎ 09-11
◎ 12-15
◎ 16
◎ 17
◎ 18-19
◎ 20
◎ 21-22

Under the background of the global financial crisis in 2008, Li Sheng, the founder of Dingsheng Pipe Industry Co., Ltd., overcame difficulties and established his first flange processing factory in Wenzhou.

Industry Co., Ltd., purchased a number of processing equipment, recruited technical personnel, and expanded the production scale.

Wenzhou Zhengsheng flange Co., Ltd., was registered and established, and the enterprise is moving towards normalization and standardization.

Wenzhou Zhengsheng flange Co., Ltd., moved into the standard workshop of Binhai Economic and Technological Development Zone, with an actual use area of over 3,000 square meters. The company is equipped with 50 sets of CNC machine, high-precision drilling and machining centers . Increase production capacity and expand scale.

Wenzhou Zhengsheng Flange Co., Ltd. has obtained the national special equipment manufacturing license, ISO9001 quality system certification, and a number of large-scale enterprise supplier network access certificates, indicating that the company's quality brand has been improved simultaneously.

Wenzhou Zhengsheng Flange Co., Ltd. officially changed its name to Zhejiang Zhengsheng Flange Co., Ltd., and the registered capital increased to 10.88 million yuan. The company is equipped with 20 large-diameter flange processing equipment to meet the increasing customer demand.

Zhejiang Zhengsheng Flange Co., Ltd. changed its name to Dingsheng Pipe Industry Co., Ltd. with a registered capital of 59.18 million yuan. At the same time, the company has added large-scale processing equipment, and the maximum diameter of the flange can be processed to DN4000mm.

The company's three-year plan was overfulfilled, and the company moved into a new factory with an area of over 10,000 square meters. The total production equipment exceeds 200 units. Annual sales exceed 100 million yuan.