With the least amount of investment to decorate the most satisfying home, this is the goal pursued by many people during the home improvement process. The most worried about the reduction in investment is the renovation of the building materials on the water, doing things. What are the common tricks for home building materials price fraud? Recently, the price department has made a big secret. 1, fictitious original price “Original price†refers to the lowest transaction price of the transaction note that the operator traded on the trading floor within 7 days before the price reduction; if there is no transaction price in the previous 7 days, the price of the last transaction before the price reduction is taken as the original price. JS common tricky entrance decoration restaurant decoration home decoration door price home improvement home improvement home decoration home