4根直径2300mm靠船桩
mooring piles with a diameter of 2300 mm each
变直径变螺距
variable diameter and variable pitch
大口径直缝钢管生产线
Large-sized straight welded pipe production line
大口径直缝焊管
Large-sized straight weld pipe
大直径SHPB试验装置
large-diameter split Hopkinson pressure bar apparatus
大直径长桩
major diameter long piles