后压浆钻孔灌注桩
Cast-in-situ Drilled Piles with Grouting
泥浆护壁钻孔灌注桩
Bored pile using slurry method
钻孔后压浆灌注桩
cast in situ drilled piles with grouting
钻孔后注浆连续墙
Drill-grouted Diaphragm Wall
大孔钻孔
big-diameter hole drilling
精密深孔钻孔工具
precision deep hole drilling tool