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Hdd😊
Tcc forward!
What is the longest tunnel (at least 1m wide) that you can bore? How far in a day? How long would it take your R&D to develop a new, but pre-existing, method to at least triple that?
Hdd😊
Tcc forward!
What is the longest tunnel (at least 1m wide) that you can bore? How far in a day? How long would it take your R&D to develop a new, but pre-existing, method to at least triple that?