CaC2 Calcium Carbide, high quality calcium carbide Gas Yield:295/285 0-2mm,2-4mm ... 15-25mm,25-50mm,50-80mm,70-100mm CaC2, Calcium Carbide National Srandard GB10665-89 INDEXFIRST GRADESALABLE GRADEGAS YIELD L ... 100mm 100-120mmpacking:50kg iron drum, 100kg iron drum, 200kg iron drumLoading Quantity:22.5MT/20'FCLCalcium carbide:M.F. CaC2, gray, ... .(3)The desulfurizer in steel industry. CaC2 Calcium Carbide