Our main materails as following:
1> 100%natural Shanxi black, polished degree above 100.
2> 100%natural Fengzhen balck, polished degree above 100.
3> 100%China black, polished degree above 100.
4> Mongolia black, polished degree above 95.

Standard Export Packing
Inner packing: Foam box or carton
Outer packing: Wooden crate