Product Description china grade green petroleum hard coke for sale Foundry&Metallurgical Coke fixed carbon:85,86%,87%,88%,90% sulfur:0.5%,0.6%max,0.65%max,0.7%max,0.8%max ash:8% 10%,11%,12%,12.5%,13%,13.5% volatile matter:1%,1.5%,2% moisture:4%,4.5%,5% calories:6800~7800KCal size:regular size...
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