1. Calcium Carbide CaC2 2. Gas Yield: 295/285 3. Size: 0- ... ,7-15mm,15-25mm,25-50mm,50-80mm,70-100mm Calcium Carbide packing:50kg iron drum, 100kg iron drum, 200kg iron ... desulfurizer in steel industry. CaC2 gas yield 285 295 305 Calcium Carbide good quality