With significant technical and experiment advantages and advanced technology of both hardware and software, RZN has developed technical specialty of its own to accomplish missions despite intricate geographic conditions. In particular, it is good at dealing with various problems of pile foundation engineering in diagonal strata, karst cave geology and boulder formations. The Technical Department of the company has made continuous research and innovation in pile foundation technology. Over the years, the company has completed 2 inventions and more than 30 utility model patents.