In current tunnel support system, the self drilling hollow bar self drilling hollow bar system is a kind of very effective anchor supporting way, its application is very extensive.With the development of geotechnical anchoring technique and theapplication of hollow bar anchor s, the advantage of self drilling hollow bars in the field of geotechnical gradually occurs and take place of mortar hollow bars in many fields. All this time,Sinorock is devoting itself to providing one-stop self drilling nchor solution, which is safe, efficient, energy-saving and environment friendly, for global geotechnical anchoring projects. Self drilling hollow bar, as a main method for supporting modern project, has been applied in different projects’ construction, especially in the rising civil construction. Self drilling hollow bar fixes self structures with surrounding rocks by using slurry, which can stabilize projects, avoid deformation and escort for people’s security. With these multi-function hollow bars,Sinorock is correspondingly equipped with a series of high-tech hollow bar production lines,accessories processing equipments and an entire set of hollow bar testing equipments,in this way,we can say,Sinorock has amazing advantages in hardware facilities.