Advantage & Function | 1.Immediately initial stage support for rock, control the surrounding rock being out of shape, guarantee the stability of surrounding rock |
2.Compared with solid rebar bolts, medium hollow design, makes the hollow bolts get the function of grouting pipe, it well avoids the waste and running off of mortar when grouting pipe pull out form the rock layer under traditional technology | |
3.Mortar injecting well filled, what is more it can reaching goal of pressure mortar injection, finally the quality of project is improved | |
4.Due to each accessories or parts effecting, the bolt neutral peculiarity is good. The mortar can fill every surface part of the hollow bolts, so the bolts get rid of being rusty, finally we get the goal of long term protection and supporting for rocks. |