... . One king of the greatest use, the largest amount alloy, manganese content of about 70%,75%, 80%, 85%, 95%. 2. Usage ... .50.50.040.04Size andPacking10-100mm, 10-50mm, 50-100mm, 90%min, or at customers’ option;Packing: In 1MT big bag ... , or Packing in 500kgs, 1000kgs Iron Drum; Low Carbon Ferro Manganese