Mechanical properties of fasteners; part 2: nuts with specified proof load values; coarse thread (ISO 898-2:1992); German version EN 20898-2:1993— 16 стр.
Mine support; rigid connecting elements, arch stilts, and other connecting elements for support in roadways and other type of mine support; testing— 4 стр.
Mine support; rigid connecting elements, arch stilts, and other connecting elements for support in roadways and other type of mine support; testing— 4 стр.