Guoming Ductile Iron Pipes Co.,Ltd. (referred to as "Guoming Pipe") is a holding company under Jigang Group Co., Ltd., Guoming taking the relocation of Shandong Ductile Iron Pipe Co., Ltd. (referred to as "Jigang Pipe") as an opportunity to establish a new company in Lanling County , Linyi City, Shandong Province, which is a high-tech enterprise re-established and rebuilt by a new method.

The company focuses on the R&D, production and sales of ductile iron pipes, and is one of the manufacturers of ductile iron pipes with the most abundant specifications in China. The company has won the awards of "Cast Pipe Industry Brand", "Shandong Famous Brand Product", "Shandong Manufacturing Individual Item", "Shandong High Quality Product", and National "High-tech Enterprise".

 In 2016, the company established a new plant in Lanling County, Linyi City, and was fully put into operation in 2018. The company’s main product is ductile iron pipe, has adopted a number of international advanced and Asian first-class processes and technologies, including seven systematic control procedures such as real-time data collection and asset operationsto achieve intelligent control of the entire production management process.

The company can produce DN80～2600mm 26 kinds of specifications, many varieties of centrifugal ductile iron pipes, and has the supporting capabilities of mineral resources, casting pipe fittings, rubber rings and other products.

Guoming Cast Pipe adheres to the environmental protection concept of "energy saving, emission reduction, comprehensive utilization, low-carbon clean, green cast pipe", and vigorously develops a circular economy. Centralized treatment and comprehensive utilization of waste and garbage; seven environmental protection facilities such as exhaust gas desulfurization, dust removal, and noise reduction cover the entire production line, completely achieving ultra-low emissions or meeting standards; implementing green environmental protection strategies and building garden-style factories for economic development and environmental protection Construction sets an example.

So far, the company's business has covered all of China, and exported to Europe, America, Oceania, Middle East, Southeast Asia, South Asia, Africa and other countries and regions. Products are widely used in global urban construction and machinery, petroleum, electric power, chemical and other fields. More than 6,000 kilometers of ductile cast pipe products are laid all over the world every year, making the urban water supply pipes system safer, greener and longer service life. High-end, high-quality, and efficient products and services have not only won the favor of users at China and abroad, but also enjoyed a wide reputation among customers. Since the start of production, the supply of products has exceeded demand, and it has become a representative enterprise in the conversion of new and old kinetic energy.