Yellow tile approach inadvertently cause a yellow material storage approach tiles, mosaics, transportation from the factory to the site, the packaging carton or rope to get wet, the water soaked building materials and finishes to produce yellow spots . According to the pollution situation and the extent of penetration into the interior can use the following approach: (1) the contaminated surface is light in color and little pollution concentrations were available for 30% oxalic acid wash liquid bubble. (2) pollution by use of hydrogen peroxide (H202) foam wash. Proven, general building materials contaminated by 12 ~ 24h antique brick can be effective after the first choice, and then rinsed with clean water. Through strong oxidant faded tiles, will not damage the building materials luster. Tens of thousands of white tile block contaminated after cleaning, satisfactory results were obtained. The method less investment, simple process, the operator's body without toxic (open operation). Italian ceramic tile production is mainly concentrated in Bologna, the region from the tile industry antique terracotta brick industry, dating back to the thirteenth century. Bologna has hundreds of tile manufacturing company and glazes, enamels, ceramic tile and other auxiliary equipment industry, the company, therefore, in Bologna tile industry and supporting industries of the company is the world's highest intensity areas. After World War II, the rapid growth of the Italian market demand for ceramic tile, it is because the post-war reconstruction in the construction industry brought prosperity. In addition, another reason for the rapid development of the Italian ceramic tile industry should be attributed to Italy's Mediterranean climate (ceramic floor tiles need to slowly dry in warm weather). In Italy, there is also a natural stone instead of carpet or wood flooring tradition favorable conditions coupled with the traditional pavement habit, making Italy in 1987 per capita consumption of tiles has reached 3.33 square meters, ranking first in the world. Due to demand, 50 to 60 years of age antique brick tile puzzle during IMOLA generation, the number of tiles Bologna region's sharp increase; there are 102 home to the the 1962 time. In the Bologna area, ceramic tile manufacturers must fight for the retail channel and fierce competition. Retailers need for high quality, low cost yet beautiful tiles. Therefore, companies must constantly in technology, design and distribution channels to compete with each other. Often there will be some innovation in a few weeks, and these innovative and quickly imitated by competitors. So, if you want to be in a company in technology, productivity or design leadership we must continue to improve production technology, the introduction of new products, so the competitors behind. Preferred antique brick, antique brick, ceramics provided by the new GM General Ceramics Co., Ltd. Xinzheng City. Xinzheng City, General Ceramics Co., Ltd. (www.hongshanchu.co) strong, credible, in Zhengzhou, Henan Province of wear-resistant tiles industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the new GM ceramics and you hand into the brilliant, for a better future!