Masonry oven India, tandoors are traditional clay ovens, although these days modern electrically fired tandoors are available. The open-topped tandoor is a transitional design between the earth oven and the Roman-plan masonry oven. In the precolumbian Americas, similar ovens were often made of clay or adobe and are now referred to by the Spanish term "horno" (meaning "oven"). Horns are also traditional in the American Southwest. The traditional direct-fired masonry design is often called a "Roman" or "black" oven and dates in Western culture to at least the Roman Republic. It is known as a black oven because the fire generates soot
Ceramic molding Ceramic molding The ceramic molding process is an easy production method which guarantees the precision required, and also gives a good surface finish, using a high temperature method to better structure and shape parts. This process also gives a low grade of toleration and is not very expensive. The patterns that ceramic mold uses are plaster, plastic, wood, metal, rubber, etc. The pattern is the shape body of the desired part. Ceramic molding has been around for centuries. When man discovered fire, they got curious of what they could do with the fire, so they experimented with the process of