The company is Guangzhou professional marble renovation, maintenance company, a refurbished stone is to use multi-function washing machine, vacuum suction machine and wash the stone, water and other cleaning tools and cleaning agents. Will occur contamination or lesions such as uneven stone surface stone deep scratches stains and other use of imported stone deep refurbished machine with different sets of disc grinding, from coarse to fine, polished several times, so that the original foundation stone to restore its original appearance. 2. polishing crystal stone is a natural environmentally friendly decorative materials, bright colors luxurious, so their maintenance is particularly important. Crystal is with the naked eye can not see small holes sealed the stone surface to prevent contamination and dirt penetration of dust, thus extending its life. 3 polished high-speed polishing machine for polishing, coupled with a special polishing wax, in order to achieve the effect of bright and clean. Crystallization: the use of professional crystal machine with advanced stone care grain flour on the stone crystallization process.