Our company have been manufacturing road building and maintaining machine for 20 years. We hold the way of marketing and technology promoting. We established JINNIU machine institution, xi/an starter research center and new products testing workshop. We have some scale ability of products-design and craft-breakthrough and own complete freezing-heating matching equipment and perfect testing-measure. We invent the products of HEX-50 model of concrete vacuum-water-absorbing machine, LK-150, RLF-40 cooperated with Northeast, xi/an transport university and HEIBEI, and LL5151YL, LCI, and other 30 kinds of products by ourselves.