spawanie
cięcie plazmow
malowanie przemysłowe
spawanie transformer tanks, industrial mesh
spawanie

Wedge steel bolt

Wedge steel bolts are used as the elements of mine working supports and ensure the bearing capacity of at least 100 kN for roof bolts and at least 30 kN for side wall bolts.

The features of wedge steel bolts:
 lower operating costs,
  fast installation at the working,
 efficient for hard rock mass.