CaC2 Calcium Carbide, high quality calcium carbide Gas Yield:295/285 0-2mm,2-4mm,4-7mm,7-15mm,15-25mm,25-50mm,50-80mm,70-100mm CaC2, Calcium Carbide National Srandard GB10665-89 INDEXFIRST GRADESALABLE GRADEGAS YIELD L/KG≥295285PH3%V/V0.080.09H2S %V/V0.10.13size:0-2mm 2-4mm 4-7mm 7-15mm 15-25mm 25-50mm 50-80mm 70-100mm 100-120mm packing:50kg iron drum, 100kg iron drum, 200kg iron drum Loading ...