LOCK BOLT MADE OF STEEL PIPE

A sleeve 10 for introduction of a pressurized fluid, which is attached to a rockbolt main body 1, comprises a cylindrical projecting part 11 of a large diameter and a bearing-plate-holding part 12 of a diameter smaller than an aperture of a bearing plate 6. The projecting part 11 and the bearing-pla...

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Bibliographische Detailangaben
Hauptverfasser:	TANASE, HIROYUKI, SHIROMA, HIROMICHI, ITOU, TETSUO, NAKAKO, TAKEFUMI, OOSHIMA, KENJI, KITTAKA, TOSHIHARU, YOSHIDA, TAKEYUKI, IWASAKI, TATSUROU, NAKATA, MASAHIRO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LARGE UNDERGROUND CHAMBERS METALLURGY MINING SHAFTS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TUNNELS
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