About Us

Jiangsu Dilong Heavy Machinery Co., Ltd. is one of China's earliest professional companies engaged in the research, development, and manufacturing of trenchless technology. The company began applied research in trenchless technology in 1996 and was officially registered and established in 1998. It is a member of both the International Society for Trenchless Technology (ISTT) and the China Society for Trenchless Technology (CSTT).

  • About Us

    Jiangsu Dilong Heavy Machinery Co., Ltd. is one of China's earliest professional companies engaged in the research, development, and manufacturing of trenchless technology. The company began applied research in trenchless technology in 1996 and was officially registered and established in 1998. It is a member of both the International Society for Trenchless Technology (ISTT) and the China Society for Trenchless Technology (CSTT).

    Dilong products, renowned for their superior quality and outstanding performance, are complemented by the company's consistent service philosophy of "everything from the customer's perspective." These products are now distributed across more than 20 provinces in China and have been exported to countries such as Russia, Southeast Asia, and Africa.

    In order to provide customers with more timely and efficient services, our company established South China Branch in Guangzhou and North China Branch in Tianjin in 2009, achieving the goal of extending Jiangsu Dilong's marketing and service network to major domestic markets. Adhering to the enterprise spirit of "Professionalism, Dedication, and Focus," Jiangsu Dilong is committed to working hand in hand with colleagues in the trenchless industry to create a brighter future.
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Product Center

The company's main products are the DL series of horizontal directional drilling rigs and horizontal auger boring machines, which are used in trenchless pipeline installation projects. As a high-tech enterprise, its business covers the R&D of heavy machinery, pipeline engineering construction, pipe sales, as well as import and export trade.

News Center

冠石科技于2012年先后通过了ISO9001国际质量体系认证、ISO14001国际环境管理体系认证,并获得“国家高新科技企业”荣誉称号。

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