The picture below shows the steel bar anchor, which is made of HRB400E steel bar.
The types of anchor bolts can be divided into seam anchor bolts, rebar anchor bolts, left-handed anchor bolts, right-handed anchor bolts, self-propelled anchor bolts, hollow grouted FRP anchor bolts and prestressed anchor bolts, which are widely used in various tunnel operations such as coal mines, national defense, railways, hydropower, tunnels and transportation.
HRB400E steel bar anchor