2. renovated granite granite known as Madan, mainly composed of quartz, mica, Mohs hardness value of about 6.5, hard stone renovation, prone to long-term use of natural weathering and wear and tear, and its performance characteristics as mica off. At this point there is a small stone surface pitting recessed appear Hongkou stone renovation, when pitting growing, granite surface brightness drop, lose their luster, hand concavity when touched, can be restored using the refurbished stone luster. 10. crystallization process: the use of crystal stone powder and crystalline pharmaceutical complex crystal surface grinding machine polishing Yangpu stone renovation, under the weight of the grinding stone and crystallized powder to make a comprehensive physical and chemical reactions occur at high temperatures, the formation of a layer of dense, hard crystalline protective layer. Can achieve a natural stone like marble surface gloss, brightness of up to 90 ° or more, the ground bright and smooth as new. Fourth, marble renovation crystallization effect: after renovation crystalline marble solve the gap between the level difference and joints in Changning stone renovation, surface free of impurities, the brightness of more than 90 degrees, the hardness increased significantly?. Qin Ze US industry (Figure) | Jinshan stone renovation | renovation of stone provided by the Shanghai Qin Ze US Industry Environmental Technology Services Limited. "Cleaning company, cleaning company, Shanghai cleaning companies, carpet cleaning, floor waxing, marble" preferred Shanghai Qin Ze US Industry Environmental Technology Services Co., Ltd. (2), the company is located at: 299 Lane Road, Shanghai Pudong New Area Bi-liter 4 102 room, over the years, Qin Ze US industry to provide customers with the best quality service, Contact: Miss Zhang. Welcome to the new and old customers call, letter, visit the guide, business negotiations. Qin Ze US industry expect to be your long term partner!