8.  Preparing : Before paint, we have to prepare the model by cleaning with the detergent       water. Then we pour the liquidity acid into the model to change it to be the base colour.       Next, we dry the model in the drying, an oven especially for brass and bronze products,       dry approx. 2 hours.

9. Colouring : paint in desired color, then we shall dry the model agian approx 2 hours. This      process is for lasting color for long time, more beautiful color and drying the model. If the      inside model still humid, the different weather in any country will cause discoloration to the
     model. Then we shall obtain readymade product ready for sale.

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