We utiize NO-DIG technology, which was developed based on NTT's R & D results, to continue to take part in improving social infrastructure efficiency, as well as to contributing to global environmental protection.
AI-MAT Method of Unreinforced Hand Hole Repair
■Reconstruction enables the aging of a hand hole ■Construction is possible in narrow situations with many cables ■Can be reinforced in a short period of time ■Economical compared to removal and reconstruction
