As the authorized dealer and accessory center in Nanjing of Xuzhou Xugong Foundation Construction Machinery Co., Ltd., Nanjing Runlianjia Machinery Co., Ltd. locates in Nanjing Qinhuai oasis with convenient transportation which is known as "economic heart and imperial state of six dynasties". The company's employees have many years of the trenchless industry working qualifications.

Company uses overall resources and platforms of Xuzhou Xugong Foundation Construction Machinery Co., Ltd. to provide machine sales, after-sales service, spare parts supply, construction machinery maintenance, technical advice, and on-site construction guidance of Rotary Drilling Rig, Horizontal directional drilling, Diaphragm Wall Grab. In the increasing fierce competition, the company has gradually formed integrated sale and service system. The XZ horizontal directional drills range from 16t to 300t produced by the company can satisfy the requirements of different customers.

The company's products are widely used in the construction of highways, railways, bridges, construction, municipal engineering and other infrastructure projects. Through the cooperation with domestic higher education, scientific research units and international well-known companies, the company constantly pursuits technological progress and innovation to make world-class products.