Npd1500 High Speed Balance No Dig Slurry Compound Pipe Jacking Tunnel Boring Machine Machine for Steel Pipe Hangzhou Supu Business Machine Co., Ltd. Base Info Description Pre：1800mm No Dig High Speed Hydraulic Rock Pipe Jacking Machine/Micro Tunnel Boring Drilling Machinery (MTBM) for Pipeline Next：500mm-5000m Tunnel Boring Machine for Natural Trachea
