seriously affecting the service life of the floor. The main reason for this situation is due to the manufacturer in the production process in order to pursue low cost and the use of poor quality impregnated paper. I visited the Beijing building materials market, found that, such as outside the city, actually home,treated lumber or not for patio cover

such as the overall size of the larger building materials market did not find the above unqualified floor. City furniture market, the market, said the person concerned, large-scale building materials market into the store sales system is relatively perfect, the product into the store sales have a rigorous system for review,balcony floor

and by the person responsible. The above non-compliance products are mostly small and medium enterprises production of counterfeit board, the majority can not provide the relevant test report, naturally can not enter the capital of the main stores. According to the data provided by the business sector analysis, sales of this type of products are basically urban and rural junctions,put decking over plywood floor