What institution should issue the mahogany furniture appraisal certificate?

Only the mahogany furniture appraisal documents of these institutions have legal effect. They are Wood Industry Research Institute of China Academy of Forestry, Material College of Nanjing Forestry University, Shanghai Furniture Quality Inspection Station and China Furniture Quality Inspection Center. They charge about 1 000 yuan each time, and they are all state-authorized mahogany furniture appraisal centers. In addition, there are local authorized quality inspection centers. thank you