 The craftsmen used 13 raw materials, such as raw lacquer, ramie, colorful stone powder and tung oil to wrap and glue the linen and paint which they then polished repeatedly.Then, they painted auxiliary materials, such as cinnabar, at last, they pasted gold foil.After careful calculation and strict budgeting, the craftsmen figured out that 2.5 kilogram gold was needed to decorate and embellish relics like Buddha statues.