精选优质文档-倾情为你奉上 Paper-making is one of the four great inventions of China, the paper is the han long experience accumulation and the crystallization of the wisdom of working people, human a brilliant invention in the history of civilization. China is the worlds earliest sericulture silk in the world. Han Chinese working people above cocoon silk silk, such as the remaining evil cocoon, cocoon disease such as flocculant with legal system take silk floss. After floating flocculant, woven bamb
