Larger-Inner diameter Multi Walled Carbon Nanotube

Larger-Inner Diameter Multi Walled Carbon Nanotube; Purity: >70wt%; Inner diameter: 20-50nm; Outer Diameter: 30-60nm; Length: 1-10um; Specific Surface Area: >200m2/g; ASH<2.0wt%; Tap density: 0.0441g/cm3; EC>100S/cm; Black powder.