Calcium Carbide Gas Yield: 295L/KG min, Size: 1-4mm, 4-7mm, 4-15mm, 7-15mm, ... 15-25mm, 25-50mm, 50-80mm, 70-100mm, 80-120mm Calcium Carbide ... for high qualitySpecification:Gas Yield: 295L/KG min,Size: 0.3-1mm, 1-4mm, 4 ... steel drum, 200kg new steel drum, 220kg new steel drum Calcium Carbide