人工挖孔大直径扩底桩
large diameter bulb pile constructed by manual excavation
超长大直径钻孔灌注
super long-large diameter bored pile
extra-long and large drilling pouring
超长大直径钻孔灌注桩
super long-large diameter bored pile
大直径超长钻孔灌注桩
Ultra-long large-diameter bored pile
大直径超长钻孔桩
large diameter over length pored pile
大直径钢筋混凝土钻孔灌注桩
large-diameter reinforced concrete bored pile
大直径螺旋钻孔桩
large diameter bored pile
大直径人工挖孔桩
large diameter manpower excavation pile
大直径深长钻孔灌注桩
large-diameter bored cast-in-situ deep and long pi
大直径深孔
large diameter longhole
big-deep holes
big-diameter deep-hole
deep-hole with large diameter
大直径深孔爆破
large diameter deep hole blasting
大直径深孔采矿
Large diaamneter longhole mining
large-diameter longhole mining
大直径深孔采矿法
Large diameter longhole mining method
Large diameter longhole mining
大直径深孔阶段矿房法
large-diameter deep-hole mining by sublevel room work method
大直径深孔凿岩
Large diameter long-hole drilling
大直径水平长钻孔
the large diameter horizontal long drilling hole
大直径水平孔
horizontal hole with large-diameter