... the following specifications:Electrically Calcined Anthracite:SPEC:FC: 92-95%min; Ash: 6.5%max;VM: 0.80%max; Iron: 0 ... :6-20mm,75%;Less than 6mm,25%; or 0-20mm, 90%min, or at customer's option;Packing: In 1200kgs Big bag ... Calcined Anthracite Coal for For Carbon Electrode Paste(0-20mm, 90%min)