长螺旋钻孔压灌混凝土桩
auger bored cast-with-pressure concrete pile
超声钻孔对测法
ultrasonic borehole testing method
大直径超长钻孔灌注桩
Ultra-long large-diameter bored pile
大直径钢筋混凝土钻孔灌注桩
large-diameter reinforced concrete bored pile
大直径深长钻孔灌注桩
large-diameter bored cast-in-situ deep and long pi
大直径特长钻孔灌注桩
large-diameter super-long bored filling pile
导杆钻孔胎
position die for drilling hole of guiding-rod