... -1mm, 0-5mm,1-4mm, 1-5mm, 2-8mm, or at customer's option;PackingIn 1MT big bag or 25kgs bag ... then in 1MT big bag, or at customers’ option; 2. Advantage: in producing casting, it can increase ... steel and reduce the quantity of Scrap iron, or use no Scrap iron at all, graphite petroleum coke has high absorptive character ...