Jiangsu Dilong Heavy Machinery Co., Ltd., as a member of International Society for Trenchless Technology (ISTT) and China Society for Trenchless Technology (CSTT), started the application research of trenchless. Jiangsu Dilong Heavy Machinery Co., Ltd. is one of the earliest specialized private companies in no-dig technology development and construction in China. After long-term experiment and improvement, our machine is qualified to go into the overseas markets. We have been selling our ...