Tianyi Group Co., Ltd. is a corporate integrating production, education and research. The key product WHDF Concrete Inorganic Nanometer Anti-crack and Infiltration-reducing Agent (referred to as WHDF) is a transformation of Wuhan Institute of Technology scientific research achievements. The core competitiveness is the technical standards and technical achievements which reach the international advanced level. The definition of "anti-cracking expert" is the echo and strengthening of the brand. High crack resistance, compacting performance, durability, construction performance and self-healing performance are the technical characteristics of WHDF. Achieving "crack resistance" can be "seamless", and only super crack resistance can achieve the "seamless" standard. The definition of "expert" is also an guarantee of "anti-cracking" technology - scientific and technological invention patent achievements, the first prize of Hubei Province Science and Technology Progress Award, the National Torch Plan Project of the Ministry of Science and Technology, Promotion and Transformation Guidelines Project of the Ministry of Construction, the National Key New Products and other qualifications and honors are enough to confirm that the "anti-cracking" technology is extraordinary. At the same time, "expert" is not only the meaning of "industry authority" and "technical authority", but also the reference to the "college background" of the scientific and technological team. In order to achieve the seamless standard,the “anti-cracking expert" WHDF is needed. To believe in the "anti-cracking expert" is to believe in the "Tianyi" brand