Tunnel Ground Protection with reference number A-05.20.33 made of wear-resistant materials, compatible with manufacturer reference number 65-2 E for turbine OTROS REPUESTOS MEBUSA - (SISSON-LEHMANN) of the MEBUSA - (SISSON-LEHMANN) shot blasting machine.
The Tunnel Ground Protection 65-2 E is hardened to 62-65 HRC, from surface to core, notably improving its efficiency against wear.
Hardness is guaranteed by a hardness certificate.