National specification of solid wood flooring moisture index for equilibrium moisture content of 7% to sales locations. Color: this is key no vibration slip ramp floor, a lot of wood in this dispute. It's the natural color of the wood flooring unanimously demanding unrealistic wood flooring must be permeable floor color color, color is not naturally exist to prevent this is a natural attribute of the decision and therefore the floor, the state in the development of relevant norms, chrominance not required. That is how it happened what color? Why not norm that country? The section from the wood can understand the occurrence of principle wood color. Trees in the growth of natural medicine hospital dedicated floor, affected by climate change and soil conditions vary, of course, with the formation of different local strain wood color, texture different. Heartwood color depth is usually located inside the trunk cross-section, formed of heartwood and sapwood gradually transformed, while sapwood is located outside the trunk, usually light color. The wood color wood containing wood cells is due to a variety of pigments, resins, gums, tannins and oils and other objective factors in the formation; the same species of wood due to the wet and dry, section old location (heart, sapwood) air exposure time different color decay and fungal infections and tree height location and site factors such as wood color has changed. Chongqing floor, tinker building materials, hospital dedicated floor by the Henan tinker Building Materials Limited. Chongqing floor, tinker building materials, hospital dedicated floor Tinker Henan Building Materials Co. (www.hn101jc.com) this year introduced a new upgrade, the above picture is for reference only, please call the telephone or pictures on this page, for the latest Information, Contact: Zhang.