FABRICATION AND ERECTION OF STRUCTURAL ... - steel Explore further
2018-4-12u2002·u20022.3 Punching and Drilling Most fabrication shops have a range of machines, which can form holes for connections in structural steelwork. The traditional drilling machine is the radial drill, a manually operated machine, which drills individual holes in structural steelwork. But this method has become too slow for primary line production.
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