The second China (guangzhou) international municipal equipment and technology expo 2012, hosted by the China municipal engineering association, was held in zone B of pazhou pavilion of the Canton fair from March 9 to 11. "More than 100 large equipment gathered in guangzhou, environmental protection, efficient, non-interference products become highlights of the exhibition. Nanjing dilong, a horizontal directional drilling rig manufacturer focusing on technology research and development in the trenchless industry, participated in the exhibition. Nanjing dilong trenchless drilling rig has been performing well in the field of municipal engineering and is deeply loved by the trenchless industry. In this exhibition, customers will have a deeper understanding of the quality and service of dragon drill.