坯布 Traditional form: 坯布 Pinyin (reading): pībù Definitions: unbleached and undyed cloth gray cloth Characters: 坯 - clay; unburnt earthenware 布 - cotton, linen, textiles; to announce, to declare; to spread Traditional characters: 坯 - clay; unburnt earthenware 布 - cotton, linen, textiles; to announce, to declare; to spread