Graphitized Multi-Walled Carbon Nanotubes >99.9%,ID:3-5nm,OD:8-15nm,Length:~50μm，>99.9%,ID:5-10nm,OD:10-20nm,Length:10-30μm，>99.9%,ID:5-10nm,OD:20-30nm,Length:10-30μm，>99.9%,ID:5-12nm,OD:30-50nm,Length:10-20um
