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By certification 
Our company is the leading manufacturer of carbon raiser in China, and have got the national patent compared with our competitors. Application: used to improve the carbon content in steel-melting and ductile iron foundry.Also it can increase the quantity of scrap steel and reduce the quantity of scrap iron, or use no scrap iron at all. Characteristics: high carbon, low sulfur, few harmful ingredients, high absorptivity of carbon, with stable effect on improving the carbon content. C S P H20 Size Ash Volatile weight ≥90% ≤0.5% ≤0.4% ≤0.5% 1-3mm 7% ≤1.5% ≥91% ≤0.5 ≤0.4% ≤0.5% 3-5mm 7% ≤0.5% ≥92% 0.3% ≤0.4% ≤0.5% 3-5mm ≤5% ≤1.5% ≥93% 0.2% ≤0.4% ≤0.5% 3-5mm ≤4% ≤1.5% 95.5% 0.16% ≤0.4% ≤0.5% 1-5mm ≤4% ≤1.5%
