• Step 1: take the main raw material used in the production process from the source that is white clay (Marl) and clay (Clay), which is available from the natural clay sources that produce.
• Step 1, the main raw material used in the production process, that is, from the kaolin (Marl) and Clay (Clay), which is found in the earth's natural resources to produce.
- step 1 the main raw material used in the manufacturing process from the source, that is, kaolin (Marl) and clay stabilized (Clay), which obtained from the source of natural soil to produce.