Not logged in [Read-only] (Click for login information)
Trace: » prepacking_perfs
Translations of this page?:
[[terms:prepacking_perfs]]

Prepacking (perfs)

packing the perforations with gravel to prevent tunnel collapse.

 
Not logged in [Read-only] (Click for login information)
terms/prepacking_perfs.txt · Last modified: 2011/07/26 09:21 (external edit)