Qin Ze US industry (figure), Chongming stone renovation, stone renovation provided by Shanghai Qin Ze US Industry Environmental Technology Services Limited. Shanghai Qin Ze US Environmental Technical Services Co., Ltd. (www.qzmychina.com) is a professional engaged in "cleaning company, cleaning company, Shanghai cleaning companies, carpet cleaning, floor waxing, marble" company. Since its inception, we adhere to the "honesty, sound management" approach, the courage to participate in healthy competition in the market, so that the "Qin Ze US industry" brand has a good reputation. We adhere to the "service first, customers first" principle, so Qin Ze US industry has won the trust of customers in the cleaning of the congregation, and establish a good corporate image. Special Note: This information is for reference pictures and information, please contact us to obtain the most accurate information, thank you! Because granite hard, so the simple use of the surface damage to the chemical class of curing agents, abrasives and other conservation is difficult to achieve the desired effect, Erik company after years of exploration and research, that the use of large stone refurbished machine adopts physical grinding method Jingan stone renovation, which is better than the simple use of chemical products for renovation grinding. Physical grinding method must satisfy two conditions: first Zhabei stone renovation, the weight of refurbished machines; second, refurbished machine speed. That Minhang stone renovation, needs weight and low speed in stone polishing step; a bright polishing step, the need for low weight and high speed. ④ use 200 #, 400 #, 800 #, machine speed of 500 rev / min to continue grinding. ⑤ then use 1500 #, 3000 # polished surface polished stone renovation, then the two machines with heavy rail removed, the speed is increased from 500 rev / min to 650 rev / min, and finally washed stone surface clean, dry, showing beautiful colors.