Rapid expansion of expandable rock bolts from Virsbo
One of the rapidly growing product groups last year and this has been the SSAB ERB - expandable rock bolts that are produced in Virsbo, Sweden. Expandable rock bolts are used in underground mines and road and railway tunnels for example. SSAB has been a producer to several leading distributors of rock bolts since 1979, and with our own steelmaking, profiling and assembly of the final SSAB ERB product, we can guarantee excellent production control and product quality. SSAB’s expandable rock bolts (SSAB ERB) consist of a folded steel tube with an upper bushing and inflation bushing