J is for Jack The early days of drilling created a test of strength and endurance for miners. By Bill Langer Jack (n.) — used as a form of address for an unknown person — ‘It is common among schoolboys … to address ...
SUBSCRIBE & FOLLOW
- MSHA Alert: Electrical Safety382 Views
- 25 Days of RollOuts: Caterpillar’s 988K wheel loader200 Views
- Komatsu's WA1200-6 wheel loader offers more horsepower, lower costs191 Views
- U.S. aggregates production rises in Q3 2013189 Views
- 25 Days of RollOuts: Dust Control Technology’s DustBoss DB-100117 Views