Hengshui Jrain Frp fire retardant fiberglass

Fiberglass grating attachments and clips are specially designed to secure fiberglass grating or plates to the supporting structures. Additionally, they are used to fasten together adjacent grating panels, which minimizes load-induced differential deflection. All fiberglass attachments and clips are made of Type 316 stainless steel, and are available in 1, 1-1/2 and 2 sizes. For more on fiberglass attachments and clips, click here.

...

In addition to breaking through rocks, tunnel bench drilling bits also play a role in stabilizing tunnel walls. As tunnels are excavated, the surrounding soil can become loose and unstable, posing a danger to workers and the structural integrity of the tunnel. Tunnel bench drilling bits are used to create holes for support structures such as bolts and mesh, which help to secure the tunnel walls and prevent collapses. By stabilizing the tunnel walls, these drilling bits ensure the safety of workers and the success of the tunneling project.

...