Because granite hard, so the simple use of the chemical class of surface damage when conservation agents, abrasives and other conservation is difficult to achieve the desired effect stone renovation, Erik company after years of exploration and research, that the use of large stone refurbished machine adopts physical grind Methods Qingpu stone renovation, which is better than the simple use of chemical products for renovation grinding. Physical grinding method must satisfy two conditions: first weight, refurbished machines; the second Pudong stone renovation, refurbished machine speed. That Yangpu stone renovation, needs weight and low speed in stone polishing step; a bright polishing step, the need for low weight and high speed. 10, the weight of the foot, disc withstand pressure: machine weighs 250kg, 180kg up pressure on the disc corresponding more. High hardness (such as granite, tiles, epoxy terrazzo quartz sand, epoxy floor, concrete) and low hardness (marble, artificial marble) floor at the same time for the machine. 11, user-friendly design: Front electric lifting device (removable disc more humane). Rear vertical force (more ergonomic mechanical requirements) machine leveling device so that each point on the disc even by force of grinding, grinding (block) level of loss. Removable movable armrests, easy easy to operate. 12, buffer damping devices: output rotary air-compression spring between the shaft and disc, disc grinding the face of the larger notches or uneven, the machine will be a great impact, then, spring will cushion the damping effect, can keep the machine steady grinding, thereby reducing operating mechanic's labor intensity. Shanghai stone renovation, stone renovation, Qin Ze US industry is provided by Shanghai Qin Ze US Industry Environmental Technology Services Limited. Shanghai Qin Ze US Industry Environmental Technology Services Limited (www.qzmychina.com) strong, credible, cleaning and other industries in Shanghai has accumulated a large number of loyal customers. The company better work attitude and continuous improvement Qin Ze innovative ideas will lead America into the brilliant industry and you work for a better future!