Sinorock self-drilling hollow bar consists of a fully threaded hollow-core steel bar which can be drilled and grouted into loose or collapsing ground without casing and acts as reinforcing element according to Ground Engineering principals e.g. Quality hollow anchor bolt is of great importance in rock mining.Sinorock has focused on developing and producing high quality hollow anchor bolts and anchor tools. Sinorock is professional in self drilling hollow anchor manufacturing,we has researched and developed self drilling anchor with different sizes and materials, formed quite complete system, which can adapt for different stratum, meet engineering requirement and improve anchor bolt’s reliability and flexibility. Sinorock has its own quality supervision systems. Being the leader exporter of hollow anchor bolts in Asia, quality control has been always Sinorock’s biggest concern. Our quality testing equipment number ranks first on the list in anchor manufacturing industry in Asia. It is Sinorock’s mission to support your construction with products of high quality. And we use our camera and then record the moments. We put this into a video on the web. You can comprehensive experience of Sinorock hollow anchor bolt products in the manufacturing process.Intuitive understanding of our products quality supervision system.
