Sofa renovation is the original old broke the skin or fabric sofa, again replaced. If the sofa shelf life due to too long, which broke damp wood or spring deformation, collapsed like a sponge problem, this technology can also be used to re-change-for-wood-for-spring sponge or strengthening existing shelf. Usually a combination of five bits takes about five to seven days time to be completed. refurbished this technology recycling, turning waste into treasure. moreover can improve the life of more environmentally friendly. refurbished a good leather sofa, with thickening Sipi, sustainable life of 3-5 years, and make peeling, for a good sofa fabric material, sustainable life of five years and down, for the first layer of thick yellow leather, sustainable life for 8-12 years. Sofa renovation is a recycling resource integration engineering, environmental protection and cost savings.