Sinorock guarantee a good quality of self drilling hollow bar
Being based on a series of advanced rock bolt production lines,accessories processing euipments and an entire set of rock bolt testing equipments,Sinorock has great advantages in hardware facilities.
Sinorock has trained a strong and big team including dedicated production team,dynamic and creative sales team,professional research and development team and considerate after-sale service team.All of them akways insist on the value of innovation,profession,responsibility and efficiency.
Self drilling anchor bolt is one of Sinorock main products,which combines drilling,anchoring and injection together.It's an advanced anchor system ,which provides solutions in dealing wih collapsed borehole in the construction of large pipe shed,confirming a good effece of injection in complicated ground conditions.
It offers higher shearing strength,bending resistance and cohesiveness than common mortar bolt with same cross section.It can be cut,connected,enforce prestressing-force,release loading,as well as widely applied to injection pipe.It's convenient and have a wide range of applications,with on need for specific equipments and materials.
More information here