The culm of the bamboo is covered by its hard epidermis and inner wax layer. It also lacks ray cells as radial pathways. Several results have revealed that bamboo is difficult to treat with preservatives [Liese 1998; Lee 2001]. An oil-bath treatment can successfully protect against fungal attack, but severe losses in strength have to be expected [Leithoff and Peek 2001]. Since the amount of each chemical composition of bamboo varies with age, height, and layer, the chemical compositions of bamboo are correlated with its physical and mechanical properties. Such variation can lead to obvious physical.
