<p>1, the purchase of wood flooring, you should understand the main technical indicators are those? When you purchase wood flooring, you should understand the main technical indicators: 1, wear indicators; 2, impact resistance; 3, stain resistance, stain; 4, anti-smoke burning; 5, the wear of the contact surface; 6 chair casters scratch; 7, after absorbing water volume expansion; 8, formaldehyde emission. 2, how to understand the formaldehyde emission? Formaldehyde is a chemical gas content in the air up to a certain concentration, it will cause harm to humans. It is mainly used in the manufacturing process of the composite material, from the adhesion. Such formaldehyde contained in the floor will not evaporate immediately, but slowly evaporate because of different temperature and humidity conditions, volatile time for over a decade</p>

<p>2, therefore, the relevant countries formaldehyde emission plywood products have developed strict standards, such as Japan, the European Community countries have regulations for every 100 grams of plywood formaldehyde emission must be less than or equal to 10 mg, otherwise not allowed to sale; China's relevant plywood formaldehyde emission standard (GB / T 18102-2000) regulations: a class (superior products) - per 100 grams of plywood formaldehyde emission must be less than or equal to 9 mg; class B (qualified) - 100 grams per plywood formaldehyde emission greater than 9 mg, less than 40 mg. 3. What are the conditions required to install the floor? Installation should pay attention to what? A: 1, can not be installed on uneven or wet ground, such as kitchen and bathroom.</p>

<p>3, you can lay on the ground plumbing, but can not be laid on the floor electric heating. 4. Why must strictly regulate the installation conditions? A: If you do not meet the specifications of the installation on the ground floor, will result in the following consequences: the floor from the dark, warped, uneven floor. 5, why should advance to the construction site survey? A: professional and technical personnel in accordance with the standards of investigation, is to ensure that before flooring installation ground conditions meet specifications, installation to ensure the best results. 6 Q: Why should the implementation of at least 24 hour delivery system? A: The floor is to allow users to adapt to room temperature indoor and outdoor humidity differences after installation to ensure that the floor will not be deformed, guarantee quality of the installation.</p>

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