helical anchors are a steel screw-in piling
Schlüsselwörter
construction,
foundation,
civil,
building,
drilling,
site,
engineering,
steel,
bridge,
concrete,
pier,
equipment,
pile,
ground,
heavy,
architecture,
industry,
structure,
cloud,
industrial,
earth,
background,
working,
factory,
metal,
business,
machine,
production,
group,
row,
natural,
food,
material,
farm,
rack,
store,
metallic