BY cutting, tearing and gluing, Liu Shuzhen changes odd bits of cloth into works of art. Although very skilled in the making of these cloth collages, Liu, 38, is actually an assistant statistician of the machine making plant of the Petroleum Piping Bureau of Langfang City, Hebei Province. Cloth “painting” has different forms and names in different places. In west China, it is called budui or buyi. During the early history of the United States, it was called “patchwork”. Cloth pictures BY cutting, tearing and gluing, Liu Shuzhen changes odd bits of cloth into works of art. Although very skilled in the making of these cloth collages, Liu, 38, is actually an assistant statistician of the machine making plant of the Petroleum Piping Bureau of Langfang City, Hebei Province. Cloth “painting ” has different forms and names in different places. In west China, it is called budui or buyi. During the early history of the United States, it was called “patchwork ”. Cloth pictures