On June 9, Ira delegation and the guests from Poly Technologies Inc. came to Harzone for a two-day visit. Accompanied by the deputy general manager of Harzone Ge Jian, the delegation visited the exhibition hall, the headquarters and Chibi production base and watched the erection of HZ emergency modularized mechanical bridge, HZ emergency heavy-duty mechanical bridge and HZ emergency large-span fast bridge on site. The delegation highly appraised the productions of Harzone and was very interested in a kind of emergency bridge.