... 1.making carbon rods 2.energy saving,high quality 3.easy operate 4.new finished mechanism ... is indispensable in people's lives, not only widely used in the fields of metallurgy, chemical industry, medicine, ... .Part one Dry raw materials:To ensure the quality of the charcoal, carbon rods must do. ... In addition depends charcoal equipment, process, quality of the rod, but also depends on the size ...