Jiangsu xuanxuan heavy industry machinery co., ltd. specializes in the design and manufacture of trenchless engineering equipment, which integrates product research and development, production and manufacturing, marketing and after-sales service. The products include multi-series pipe jacking machines, shield jacking machines, supporting equipment for pipe jacking and shield jacking machines and spare parts.Hydraulic cylinder, hydraulic system, lubrication system, pneumatic system, PLC intelligent electronic control system and non-standard complete sets of equipment.