We sell NON-EXPANDABLE OBSIDIAN with specifications as follows: 1. Average expantion ratio ( x) : 15.18 2. Standard Deviation ( Sigma) : 1.86 3. Rate unexpanding : 3.14% 4. ( x) - 3 ( small sigma) : 9.59....
We' re an Indonesian company that exports materials such as iron ore, iron sand, iron pig, coal, manganese, etc. Our company provides materials of various specifications from various places in....