wood-pile dolphin 木桩系船柱

cellular sheet pile dolphin 组格式板桩系船墩

wood pile dolphin 系船木桩

steel pile dolphin 钢系船桩

Steel Pile Type Dolphin 钢桩系船墩 ; 钢杆紧船墩

screw pile dolphin 螺旋桩系船柱

pile-cylinder-dolphin 桩筒式系船柱

pile type dolphin 桩式靠船墩

pile cylinder dolphin 桩筒系船柱