🧵🪽⬇️

#plumb line #plumb bob #vertical alignment #construction level #true vertical #gravity line

🔩|📐

#plumb line tool #vertical measure #geometry tool #construction level #accuracy check #engineering tool #level line

🧵⬇️🎯

#plumb line #true vertical #construction level #accurate drop #vertical alignment

📐—📏

#spirit level #horizontal plane #flat surface #construction level #measurement level #surveying