... FCC,RoHs Specifications 20 Years of Experience on calcined petroleum coke Professional Manufacturer Low Sulphur Content High Absorption Rate Professional ManufacturerAs ... , Korea, India, USA, Italy, Indonesia etc.Duratight Calcined Petroleum Coke has the features of high carbon,low sulphur,nitrogen and ... and friction material. No.Fix Carbon(min)Sulphur (Max)Ash(Max)V.M(Max)Moisture(Max)Grain size 1 (90 ...