These non-slip surface for contamination stone, traditional cleaning methods are used daily cleaning: (l) using high-pressure water jets to clean; (2) using a single brush and nylon brush to clean; (3) the use of chemical cleaning agent. Several more cleaning tools, although there are some effect after cleaning, but there are the following problems: using high-pressure water jets to clean, wasting precious water resources to produce high-pressure water splashing when rinsing, easily contaminate other parts, and is not thoroughly cleaned. Use single brush and nylon brush to clean, due to the structural characteristics of a single brush machine itself can be lighter for pollution clean, heavy stone surface contamination is not cleaned thoroughly. The use of chemical cleaning agent, would stone around the flowers, railings and other decorative objects cause damage, such as improper use can also cause stone disease, affecting the decorative effect. These issues are now present in almost all the buildings on the ground outside. Its advantage lies in the following aspects: (l) of green eleven due to less use of chemicals, so for the environment, the destruction of green plants, little pollution; (2) a thorough cleaning eleven capable of grinding brush so that the stone surface contamination has been completely removed; (3) the conservation of resources - After calculation abrasive cleaning combined with high-pressure water cleaning more than 50% water, with a single brush machine cleaning water fairly; and (4) one stone due to less use of chemical safety cleaning agents, long-term use of the stone had security guarantees. Shanghai trekking Engineering & Construction Limited