Tanbiz Export & Trade

We have copper ore of 20% and above from Tanzania. Our payment terms are 20% cash deposit and 80% via irrevocable non trasferable L/C which will be op

Mineral concentrates containing tantalum are usually referred to as tantalite. coltan is a dull black mineral

Graphite is a polymorph of the element carbon. diamond is another polymorph. The two share the same chemistry, carbon, but have very different structu