In the era that step into the 21st century will depend on the progress of man pouring mineral & metals technology. Therefore, the use of mineral and metal, maximum benefit is needed .
In the step into the 21st century will depend on advances in technology and tech metal primarily. Therefore, the use of minerals and metals, it is necessary to maximize the benefits.
In that era, step into the 21 century will depend on the progress in technology for this technology are the main minerals and metals Therefore, the use of minerals and metals benefit need .