... , T76 3)Drilling, grouting, anchori Self drilingl grouted anchor bolt is applicable to engineerings of railway, highway, tunnel, mine ... collapse, crack, landslide etc. geological hazards. Contemporarily, construction within narrow environment is quite convenient, solving the difficult ... , which no other material can serve as the substitution.Anchor bar: R25N, R32L, R32N, R38N, R51N, T76NAnchor ...