99.9% PURE SEMICONDUCTING SWNTs SOLUTION (NANOTUBURI SEMICONDUCTOARE 99.9% SOLUTIE) - 1 MG; 99% PURE METALLICS SWNTs SOLUTION (NANOTUBURI METALICE 99% SOLUTIE) - 1 MG; 98% PURE METALLIC SWNTs POWDER (NANOTUBURI METALICE 98% PUDRA) - 5 MG; 99% PURE SEMICONDUCTING SWNTs POWDER (NANOTUBURI SEMICONDUCATOARE 99% PUDRA) - 5 MG;